How many times does it happen that, you know that the best thing to do with a thread that's turned nasty is to walk away and not help to keep it going - but you open it out of curiosity, and someone says something that seems to cry out for a response, and you fall into refreshing it again and so help keep the thread going; and you have a sinking feeling that just maybe if you hadn't it might have just faded away.

So how do people manage to stop themselves doing that?