Have you ever lost friends because of yours or their "bad habits"? If so, (without too much detail) what was the point where you realized it was necessary?

BTW - I had a real LMAO at the headline image, it looks like you were both doing the live long and prosper sign, except @Coruscate, your hand lined up to be VERY similar to a... ummm... naughty gesture. It gave me a laugh (If you spot it will be hard to not see it) though.