My colleague is a nightmare and my manager turns into one with him
My manager is normally a very level headed fellow but what happens is when he's surrounded by people who are not level headed, he also becomes that way. I have a colleague who basically likes to ruin people's lives by doing small irritating things. He does not watch tv shows or movies, but he likes to learn what happens just to spoil it for others (he said it himself that this is why he does it) and my manager encourages this behavior! I don't know what to do but a few of my other colleagues also feel like this is getting out of control.. What should we do?