Mean pranks do more than scare and embarrass our friends, they also teach us important lessons like: never trust anyone or anything. If any of these happened to me I would book the next flight to the Canadian wilderness and hope moose aren’t huge jerks like my pals. But there’s basically only mean pranks. A nice prank isn’t even really a prank, it’s more like a funny surprise. A surprise birthday party isn’t a prank, after all. Unless the cake is filled with rat poison.