Gearworld, a Livejournal blog of a fictional travelogue, contains two instances of Schmuck Bait. Each instance had been discovered by a previous group of exploring monks, and they had left carved plaques behind to commemorate and warn about the experience.
"PLEASE DO NOT STRIKE GONG While we fully understand that you are curious as to what happens when the gong is struck, we must strongly advise against it. The results are most unpleasant and dramatically fatal. Human nature being what it is, we realize that this warning may not stop you, and may in fact only drive you to strike it, but since we are unable to destroy the gong, and the lock was evidently insufficient to keep you out, we can only hope that you will take our advice. There are neither riches nor knowledge here, but only an ugly death. Respectfully, The Monks of Perdition (In Memory of Brother Wu)"
Unusually, in each case Eland carefully reads the warning and wisely leaves it as is.
College Humor has a video called the "Retard Test". The patient is given this riddle: the red man lives in the red house, the orange man lives in the orange house, and the blue man lives in the blue house. So who lives in the white house? The patient gives "the white man" because of the way the riddle has been phrased. The doctor tells him "Wrong: the President lives in the White House. You're retarded." Not that it matters, until 2017 the correct answer would also be "a black man lives in the White House."
Subverted in this story, where The Gord makes a 100% non-functional and incomplete Sony PlayStation and builds a shrine to it with a sign reading "Please don't steal me. You are being watched. — Management." In the two hour experiment, while a lot of people stopped to look at the shrine to see if it was real or not, the closest anyone came to actually stealing it was checking that no-one was looking, as the store lights were out, picking it up, and then putting it back.
He would also price crappy game much higher than they were worth just to see if people would steal them.
Gord loves these. He found a Game Shark that actually damaged N64 systems(which is easier said than done). Then he left it out for someone to steal. He then made lots of money repairing said systems.
ThisLOLCats page. That's one ice cream cone you would not want to lick.
In the MSF High Forum, the nurse is infamous for turning people into, well, whatever strikes her fancy. She then leaves out a cake, with a sign saying "Free cake". She has had three victims of TF-cake thus far.
Many Let's Plays tend to have a Message stating "TURN YOUR HEADPHONES VOLUME DOWN" right before a really loud part. Many people INSTEAD turn their headphones volume UP.
189. Do not dare SERE graduates to eat bugs. They will always do it.
Smosh's SHUT UP! Cartoons had this in one episode of Ninjas Versus Zombies. Spencer finds a rope with the word, "Pull". Spencer decides to pull it and nearly falls into a trap door.
Though since none of the badges change the mouse pointer to the pointing hand that indicates a hyperlink or other clickable thing, and none of the regular badges do anything when clicked, users are liable to assume the button is just another quiz award or something and pay it no mind other than to maybe check the mouseover description. Making it perhaps the only Big Red Button ever that people are liable to not press.
In the Zero Punctuation review for DayZ, Yahtzee mentions that on one of his 38 attempts (by the end of the video, anyway), he finds a pistol, rifle, and a ton of spare ammo at the top of a stairwell in an abandoned building. While questioning where the guns came from, as well as questioning the broken window and adjacent dead player (portrayed as a corpse with a bullet wound in their forehead) he is shot dead by a sniper (in the same spot as the aforementioned corpse).
Yahtzee: Okay, lesson learned. Never gorp at your inventory screen while standing fully upright next to a window.
In The Stinger of Anonymous by Matt Santoro, a fan commenter tells Matt to keep pressing 7, so he gets out a keyboard and does so. He explodes.
In the Yellow trailer for RWBY, Yang strolls into a Bad-Guy Bar and uses a Groin Attack on Junior, the mob leader who runs the place, to get some information off him. When his goons descend on them, she lets his Juniors go and then playfully flirts with him, saying she wants to kiss and make up. He goes along with it and leans in, with his eyes closed. Unsurprisingly, she just socks him.
There is an image purporting to be George W Bush's Hotmail inbox. Of note for this trope is "I dare you to open the attachment …" from Bin Laden (size 260M).
The Fart Button was a site with a big red button with the caption: "Press it. You know you want to." It was actually a subversion; the button just makes a fart noise when pressed.
This post from a Twitter account named "Not A Cop" that reads, "Send Me A Pic Of Your Favorite Meth Lab"