I've seen it happen many times on another forum I visit. I don't even bother with the political and religious discussions anymore. They just drag on and on, are the same points brought up over and over again and envolve tons of arguing.
Civility sometimes is disraguarded when the debate reaches a certain point.
There are two secrets to staying young, being happy, and achieving success. You have to laugh and find humor every day, and you have to have a dream.