Face it, if someone's a good target for assassination, they almost certainly know it. They'll expect their food to be poisoned. So instead, poison the cutlery, or the glass. That way, when they eat the proven-safe food (or pretend to eat the food they can't risk testing), they'll get the poison that way.
A twist on Tampering with Food and Drink.
Compare and contrast Finger-Licking Poison, where the assassin poisons non-food-related items like book pages, envelopes or postage stamps.
- In Detective Conan, the story "Karaoke Box Murder Case" had Tatsuya Kimura being poisoned by Mari Terahara using potassium cyanide, with the poison kept on Tatsuya's jacket. The poison was applied to the place's Tatsuya was known to handle his jacket whenever he took it off, before he ate using his hands and ended up being poisoned to death.
- In an early story arc of In Another World with My Smartphone, the protagonist Touya has to solve the mystery of who poisoned the King of Belfast. The main suspect was an ambassador from Mismede, a nation of beast-kin, as she gave the wine that was supposedly poisoned. Touya reveals what it was the king's drinking glass that was poisoned, with the mastermind being a xenophobic noble who was trying to kill any potential alliance between Belfast and Mismede.
- Done in Rappi Rangai in an attempted assassination of the first princess, Hibari, with poisoned chopsticks.
- Murena goes with the theory that the Roman Emperor Claudius was poisoned, not by the mushrooms he'd eaten but by a poisoned feather stuck down his throat in order to get him to vomit up the (supposedly venomous) mushrooms.
- In The Adventures of Laura Croft & David Connors, "Family Matters" arc, David is kidnapped by Lara's cousin, Johnathan and stuck in a cell. When he's given food, he suspects it's poisoned and checks it out. After confirming it isn't, he starts to use the fork provided but stops himself short before he touches the food with it. Sniffing it, he realizes that the fork had been poisoned as a means to trick him. He throws it aside and is forced to use his hands to eat. Which is what his kidnapper wanted to "...Eat like the caveman that he is".
- Done in the Ranma ½ fanfic "Nekophilia" with chopsticks.
- In Seasons Of My Love, an Alternate Universe fanfic transporting A Song of Ice and Fire characters into the Sun King's court, Sansa is poisoned when Aqua Tofana is added to her spoon's polish.
- In the Discworld as envisaged by A.A. Pessimal, Joan Sanderson-Reeves teaches Domestic Science at the Assassins' Guild School. As well as the use of creative and innovative food additives, she also points out there is a lot the intelligent Assassin can do with what could be called the peripherals. It is instructive how a cleint will go to great lengths to ensure their cup of tea is safe and untainted. And then add a sugar cube to it. Joan also approves of the pupil who used what the client thought were chocolate sprinkles on the top of his frothy coffee - and got him to sprinkle them on for himself. The porous fabric of which teabags are made has its opportunities, for instance, and do not scorn the hollow handle in the teaspoon, which on contact with hot liquid releases a measured quantity of something interesting into the beverage.
- In Robin Hobb's Assassin's Apprentice, one of Fitz-Chivalry's assassination ploys was to poison the cutlery instead of the food.
- In The Bridge Kingdom Archives as a part of her plot to get out of the compound alive, Lara covers the soup spoons with a powerful narcotic. However, since she does not know where exactly is she herself going to be seated, first she builds immunity to it.
- The Cobra Trilogy: An especially indirect method is used by the Qasamans. After the expedition from the Cobra Worlds has arranged for the release of some of their party taken hostage and safe passage offplanet, the captives are offered food. They decline to eat it for fear of poison, and then see the hand retrieving the tray from their cell was gloved. The food wasn't poisoned, but the tray was. . . and not with a poison, but with a disease meant to infect who the Qasamans believe are hostile invaders.
- In The Count of Monte Cristo, it's explained that the Borgias used something like this for their inexplicable "only the intended victim dies" poisonings: the cup used has a special compartment containing the poison, but it only opens if a button is pressed on the cup. So the Borgia could drink from the cup first to prove neither the wine nor the cup was poisoned, then pass it to the target after pressing the button.
- In Feet of Clay, the Patrician is being slowly poisoned with arsenic and the Watch has to figure out how the poison is being administered. After ruling out poison in the food, Vimes wonders if the poisoner is making cutlery out of arsenic. Cheery explains this would only work if you could ignore the spoon instantly dissolving in the soup.
- In the second book of the Gentleman Bastard series, Red Seas Under Red Skies, Archon Stragos tricks the protagonists into drinking his wine after taking the first drink from the bottle, just to reveal afterwards that he had brushed the poison onto their cups instead.
- In The Malloreon, Sadi manages to finally get rid of an annoying minor villain by poisoning the spoon he's going to use at a banquet.
- In Phoenix Rising, Kyri is suspicious enough of a person who offers her a drink that she only pretends to drink it; it turns out that the drink itself was fine, but the glass it was served in was enchanted to knock out the person who picked it up. Specifically, as the glass's owner explains during the ensuing Evil Gloating session, all the glasses in the set are enchanted to do a knock-out when touched to female lips, which saves him having to mess around with having one drugged glass for his guest and a safe glass for himself... and raises disquieting questions about why he would happen to own a set of glasses like that in the first place.
- In Outcast of Redwall, Swartt uses this trope so he can convince Lord Bowflegg that the wine isn't poisoned by drinking some of it straight from the bottle (the poison is smeared on the goblet which they drink from). He tries it on three separate targets, though the third would-be victim catches on, forcing him to find a different method of disposal.
- In The Sirens of Surrentum, Locusta, a master poisoner, tells of a murder she heard about. The victim was given food with mild poison, but when they made themselves throw up using a feather they died from the lethal poison applied to the feather's tip.
- A short story in Tales of the Bounty Hunters had Boba Fett sharing some wine with Dengar, and putting a drug on the rim of the glass (he used a straw).
- Story #25 of the 40 collected shorts in Utterly Ingenious Five Minute Mysteries, "The Kid's Idea", asks readers to discern from a short script excerpt how a Contessa in historical Venice manages to poison a Cardinal who is already suspicious of her. She offers him a goblet of wine, but he will only drink from her goblet after she's taken a sip. She offers him fruit, but he will only take an apple from a basket she hasn't touched. She offers to split the apple with him as a show of good faith, and he only allows her to do so after spinning it in place several times (to make sure that if it's been poisoned on one side, she won't know which). After she cuts the apple and bites into her half, he takes a bite of his and promptly succumbs to a fast-acting poison. The Contessa poisoned the knife she used to cut the apple, but only on one side.
- A murder mystery episode of Benson has a variation; After the initial murder (which turned out to be faked), one suspect gets a drink at the bar and dies shortly afterward. A subsequent investigation discovers his drink wasn't poisoned, but it's later realized that the killer exploited his habit of putting the earpieces of his glasses in his mouth and poisoned them.
- In Burn Notice, Larry tried to kill Michael's client by spraying her fork with atropine.
- Defiance, "Everything is Broken": Stahma offers Kenya a drink from her flask when she is threatening to tell everyone about them sleeping together. Kenya is smart enough to realise that it may be poisoned and doesn't take a drink. Unfortunately, the outside of the flask was coated in poison.
- Justified has this happen in the first episode of season 2, when Mags Bennett shares a jar of her "apple pie" (i.e. moonshine) with Loretta's dad and reveals that while the apple pie wasn't poisoned, one of the glasses was. In the last episode, this happens again only to Mags herself.
- An episode of Murder, She Wrote has Jessicca attend a party in Hong Kong, where the host dies after dipping century egg and ginger in vinegar. It turns out that it was the glazing of the plate was laced with poison and the host died from eating it when he dipped his egg and ginger in the vinegar.
- In one series of Taggart, a serial killer uses snake venom to poison his victims, and in a scene near the end of the series, it's revealed that he administers the poison by sharing a meal with the victim and poisoning the victim's spoon.
- Played with in the Paranoia supplement Acute Paranoia. In the "Outland-ISH" adventure, the Troubleshooters must find out who is drugging the citizens in ISH sector. When they ask one of the victims if the drug is in the water, the victim jokingly says "No, it's on the inside of the cups. Of course it's in the water!"
- Subverted in Apollo Justice: Ace Attorney. A coffee mug found at the scene of a poisoning has traces of poison on its rim, while the coffee is confirmed untouched. However, it's later revealed that the victim had ingested the poison from a different source and drank from the cup later, leaving a trace amount of poison on the rim.
- A Game at Dinner, a recurring book in the The Elder Scrolls series, tells of a paranoid prince who poisons suspected spies this way, and offers them an antidote — the idea, of course, being that by taking the antidote, they'll be admitting to their treason. He lied, though. Not being certain who was his enemy, and not wanting to poison someone loyal and lose his Magnificent Bastard status, he poisoned only the so-called "antidote".
- In Wings of Dawn, Thomas' Poison-and-Cure Gambit involves faking giving his allies-of-questionable-allegiance a slow-acting poison, and rationing out the antidote to keep them alive so that they can't betray him anyway. Since none of them trust him, either, though, he's not allowed to prepare the food — but he is allowed to set out the plates.
- In Season 4 of Archer, Archer himself gets drugged by a sedative-coated wine glass in "The Wind Cries Mary", and the Albanian ambassador is assassinated by a more lethal wineglass in "Live and Let Dine".
- Emperor Nero had his cousin, adoptive brother and step-brother and potential rival Britannicus poisoned despite his food being checked by a food taster. Instead of poisoning the wine he was drinking, the assassin added the poison to the water used to cool the wine after Britannicus felt it was too hot.
- The reason tomatoes were considered to poisonous in the 1800's was because royalty would eat them on pewter plates, made out of lead. These would contaminate the tomatoes and make poisonous. The royalty blamed the tomatoes instead of the plate.
- Of course, it doesn't help that tomatoes are fairly acidic, causing the lead to leach out of the pewter faster than it normally would. Compounding matters was the fact that tomatoes belong to the same family as deadly nightshade, another famously toxic plant, and the stems and leaves of the tomato plant actually are toxic.