I'm looking for some creative ways to mess with my friends on our server without actually destroying their builds or griefing. I was thinking of using some redstone comparators to make a "ghost" door that just opens and closes randomly, or maybe hiding a bunch of chickens under their floorboards to drive them crazy with the noise. What are some of the funniest, non-destructive pranks you guys have pulled? Also, does anyone have a good design for a trap that just teleports someone to a random (but safe) location?