Get a life
We say "get a life" to each other, disappointed or jokingly. What we forget, though, is that this is possibly the most destructive advice you can give to a geek.
When I picked this as my sig, I had the feeling my life turned from "typical geek" to some excerpt from a Nick Hornby story. Definitely "life", but I wasn't sure if I like it. The meanings, though, can differ: Getting a life may mean you "merely" lose geekship, or it may break you because you are not able to cope.
As for me, it seems to work out fine - it actually gives me back some "coder focus".