NOQUIT

When you attack someone else, or are attacked by someone else, or you try to steal something, your ability to quit the game or rent in an inn is suspended for a certain amount of time: about two minutes if you fought a mobile, more if you were involved in pkilling.

If your link drops while you are affected by noquit, other players will still be able to damage you while noquit lasts; moreover, if you are a troll and lose link while you have noquit, you are vulnerable to sundeath.