When playing Quake 3 with CTF, I was guarding the blue flag, when all of the sudden a message appears on my screen:
AntiCamp:[/b]
You are camping, Move..... or DIE!!![/b]
....2 seconds later I died

So I thought we should also have this system. (with exception of builders)
Like: you get the message after 5 seconds of standing still, and if you are still not moving, you die 2 seconds after it.
What are your thoughts??