The way I deal with it:
1) I never go in the politics forum.
2) When reviewing new posts in teh Cellar if'n it's in politics I don't open the thread however enticing the topic may seem to me personally.
2) Quite early on I notice when a thread starts to drift towards political and I ignore it (no button, just remember that it's dull) until it goes away.
That being said, I like the idea of a spankray, but only if it's on webcam
.