Someone was stealing other peoples food out of a fridge at work.
So I bought some Chocolate Chocolate Chip ice cream, and stuffed some ExLax in it, labeled it with my name.
Came back latter to find just a thin scum left, kind of a “FU” from the turd who ate it. About 30 minutes later one of my co workers was racing to the can...
When I was in Jr High, there started to be a problem with lunches being stolen out of lockers (we weren’t allowed to have locks). I got tired of having my lunch stolen and going hungry for the rest of the day, so one day I made a nice peanut butter, jelly, and dead roach sandwich. Sure enough, my lunch was once again stolen. Within an hour I’m hearing “Sheila was eating a sandwich and she pulled a roach leg out of her mouth!” Guess what? Sheila and another girl stopped stealing lunches. I stopped putting my lunch in my locker and carried it around with me until the next year when I got to high school and we were allowed to have locks.