Stop the Insanity! Let's raise the bar!
I'm not going to pretend to have written this, but it's a great encapsulation of bad tactics in debating.
A List of Bad Debating Tactics, and a Recipe for Reasoned Thought. ALL READ PLEASE!
http://forums.pcper.com/showthread.php?t=324134
At times most of us have fallen back on one or more of these. Because I try to avoid them, it makes me cringe when they are used, particularly in discussions that go absolutely nowhere, again and again...