In A Feather in His Hare, an Indian reaches into Bugs Bunny's hole and Bugs hands him a mouse trap, causing it to snap on his finger and inducing great pain; as he's running by trying to shake it off, Bugs places two more mousetraps, causing him to step on one, then the other, and to scream even louder.
The gremlin in Falling Hare twice smashes Bugs Bunny's foot.
Deputy Dawg offered his boss, the Sherrif, what he thought was a watermelon. Actually it was a painted river rock. DD lifted it, found it remarkably heavy, the dropped it on the Sherrif's feet! The reaction was one of the greatest of this trope...the Sherrif's mouth strecthed to the size of his body and a loud howl was heard throughout the land!
In the premiere of The Secret Saturdays, Zak whacks Argost in the ankle with his weapon, resulting in the hopping and moaning.
This was a Running Gag in the Foster's Home for Imaginary Friends episode "Store Wars." Bloo kicks several people in the shin before running away and calling them a "rip-off artist." He later suffers this fate from Coco at the end of the episode.
The Simpsons, more than once, and with more body parts than just the foot. Which is actually a plot point in the first Sideshow Bob episode.
In one of the Peanuts TV specials, Snoopy taps a baseball bat on his foot, and as he's not wearing cleats, it hurts him quite a bit.
In another, he and Woodstock are acting as officials at a football game. (Charlie Brown's school could throw a homecoming parade but has to have a student's dog officiate the big game?!) Woodstock is handling the down counter that marks the line of scrimmage: basically, a pole with a sign that can be changed from 1 to 4. Guess where it goes.
Happens with great regularity on Tom and Jerry. In one memorable instance, Tom is about to hit Jerry with a hammer when Jerry offers him a much bigger mallet. As Tom takes the mallet, Jerry picks up the first hammer and whacks Tom's foot with it. Cue Stock Scream from Tom.
On Justice League Unlimited not even superheroines are safe from kids, as Stargirl found out when she was in Japan and attended a Super Girl convention. After she complained about the attention Kara was getting, a chubby little Fangirl goes over and kicks her in she shins for insulting the better-known heroine.
In the predecessor series, Justice League, Darkseid begins to stomp Superman's head into the ground. To counter this, Supes uses his eyebeams, through Darkseid's foot.
A good one in season 1 episode 22: Sadlygrove is suffering from heat stroke in the desert, and is convinced the ruin he's stumbling toward is just another mirage. So he gives a good kick to its stone wall — barefoot. Cue the one-legged dance.
Shortly happens to Yugo in season 2 episode 1, from a gerbil's bite.
In season 2 episode 5, Sadlygrove gets bitten in the leg by Evangelyne turned into a pig.
Ruel gets his foot stomped by his grandmother in season 2 episode 7.
The protagonist's first transformation into a fire-based alien results in his cousin, Gwen, not recognizing him and spraying him with a fire extinguisher. The best response Ben can come up with after years of abuse from his cousin is to set her shoe on fire.
Happens again to Gwen when a transformed Ben runs into her leg while attempting to flee from the Forever Knights.
In "D.W. Blows the Whistle" on Arthur, Arthur is astounded to hear about D.W. being a hero for having stopped a little kid from crossing the street without looking both ways first. "D.W., a hero?" he questions and then he drops a wrench he was holding onto his foot and starts hopping up and down.
Codename: Kids Next Door makes use of this gag in Knightbrace's debut episode, "OPERATION: T.E.E.T.H." Numbuh Three accidentally shines her teeth in Numbuh Four's face. Numbuh Four previously got his mouth saddled with humongous braces, so he falls over and drops his giant braces set on Numbuh One's foot. Numbuh One reacts predictably.
At the beginning of "Working on the Railroad," musical segment of The Alvin Show, Simon (of all people) does this to Dave with a sledgehammer.
This gag is used in the very first episode, when Eva arrives on the island she drops her bag of dumbbells onto Cody's feet.
Set up but then surprisingly averted in the Action special. Non-Action Snarker Noah kicks a bulky television set, but instead of the expected result the television is flung off screen and Noah remains uninjured.
Happened in the Ed, Edd n Eddy episode "If It Smells Like an Ed". Ed is carrying a block from a sidewalk, and when he stops to get a handkerchief out of his pocket for Jimmy he drops it on his feet. He's motionless for about 5 seconds, but right before it cuts to a commercial it shows him walking on his hands with his feet bandaged.
Played for Laughs in Phineas and Ferb: Doofenshmirtz has concocted an Evil Plan to get revenge on an ice cream man who ran over his foot the previous day, resulting in him having to wear a cast. In the ensuing fight with Perry The Platypus, he injured the other foot, causing him to hop up and down holding his foot, only to have to switch which foot he was holding because the act of hopping caused his already injured foot to hurt again. Once he started doing this, his newly injured foot started to hurt because he was hopping on it, and so on and so forth.
Tummi Gummi also fell victim to this trope in the Adventures of the Gummi Bears episode "Someday My Prints Will Come". He blames the machine that he found for causing all the trouble then kicks it, causing him to hop around in pain while holding his foot.
Taken to an extreme on Archer; while fleeing the KGB in Russia, Archer loses his shoes and has to go barefoot, and ends up stepping in broken glass. Then he gets new shoes, loses them again, and steps in more broken glass. He spends the whole chase screaming in pain with every step.
In one episode of The Powerpuff Girls, the title heroines are turned into giants by Mojo Jojo. While trying to catch him, Buttercup steps on a power line, reacting predictably.
In "Franklin and the Pinecone Pass" on Franklin and Friends, Franklin gets so frustrated and upset that Bear wants to play Rabbit's new game (Pinecone Pass) instead of playing with him that he kicks a rock, hard. (Too bad he doesn't wear the shoes described in the books' traditional opening.) He hops up and down, clutching his foot, and a just-arriving Beaver reminds him that it's balls that are good for kicking, not rocks.
In an episode of Rugrats, while at the park, Chuckie steals Angelica's shoes. Angelina angrily tries to chase him, but steps on some thorny weeds and hurts her feet. She then puts on Chuckie's shoes and continues the chase.
In Hey Arnold!, while tensions between Arnold's family and neighbors.
Ernie: Gramps stepped on my toe! Grandpa Phil: I did not! This is stepping on your toe! (STOMP) Ernie: OW!
In "Ducking Out on Valentine's Day" on PB&J Otter, after claiming he's glad there's apparently no Valentine for him from the Snooties, Flick kicks one of the Valentine crates, hops while clutching his foot, and then claims he's late for his foot doctor's appointment.
In "Calling Dr. Zak" on Dragon Tales, this happens to Zak after he steps on a spinypine thorn, though it's his sister Wheezie's foot (they're a two-headed dragon) that hops up and down while his foot, with the thorn in it, stays off the ground.
In the third act of the episode "Meet Mr. Bogus", this happens to one of the plumbers, when his partner inadvertently sets his toolbox on his foot, which causes him to hop up and down in pain.
This also happens to Bogus in the first act of the episode "Et Tu, Brattus?" after kicking the inside of the box trap that he was confined in.
Happens twice to Bogus in the episode "Good Sport Bogus"; the first time in the second act, when Bogus ends up hurting his foot after attempting to kick a metal shotput, and the second time in the third act when Bogus winds up with his feet on fire after running really fast, before he blows out the flames.
Ratty also falls victim to this in the third act of the episode "Bad Luck Bogus", after a mallet that got thrown up into the air by Bogus earlier falls back down and lands on Ratty's foot, causing Ratty to jump up into the air in pain before coming back down while holding his foot in pain.
Beetlejuice has his feet go on strike in the aptly named episode "Sore Feet."
In Ultimate Spider-Man, Spidey jumps around a bit while holding his foot after trying to kick the Juggernaut. Yeah, bad idea.
In Teen Titans, Robin seeks training from "The True Master". He is ordered to change into martial arts gi and remove his shoes. He hurts his feet on the rocky ground and complains, "The next time some crazy old woman tells you to leave your shoes behind, bring them anyway."
Wunschpunsch: In one episode, Bubonic's feet suffered several Amusing Injuries before he and Tyrannia cast the Spell of the Week. Tyrannia planned to turn everyone into giants but Bubonic's whining about his feet during the spellcasting altered it so the victims only had their feet turned into giant sized ones.
Animaniacs has a shoe related version of this, as the Warners show up in the 1970s at a disco contest.