Social experiment, joke and prank with Wet Paint sign! This wet paint prank trick is a real study on human behavior. What's interesting is how fast or slow people connect the dots. The other aspect that's funny to watch is the fact that people can not actually see behind themselves - but keep trying. The prank is truly sealed when people walking by "confirm" that paint is on Rich -meanwhile the victim(s) does not know they mean paint on Rich. The victim(s) simply hear, "Oh! You got paint on you...." We love simple tricks that truly happen in the mind of the spectator.