What’s a logical fallacy? A discussion anti-pattern. When you are discussing anything, make sure you aren’t using logical fallacies. If you are, there is a good chance that you are wrong. Or at least you need to revise your arguments.
This site has a fantastic poster which I think I am going to print and stick up at work. :-)
Also everyone should look at the “Begging the Question” fallacy. So many people use the expression “that begs the question” incorrectly.