Let's talk about ally behavior, derailing edition

Derailment, people.  Derailing is never, ever a good idea.  And yet well-meaning people do it all the time.  I feel the temptation at times, myself.  Never, ever a good idea.

I find it very, very useful to be able to identify derailment -- when other people are doing it to me,  when I'm tempted to do it to other people, or when I say something and someone tells me to stop derailing. 

Here are some excellent resources on derailment:

• First and foremost, The Geek Feminism Wiki's entry on derailment: http://geekfeminism.wikia.com/wiki/Derailment
• Piranha's Derailment Bingo: http://piranha.dreamwidth.org/445505.html
• Derailing for Dummies: http://birdofparadox.wordpress.com/derailing-for-dummies-google-cache-reconstruction/  

Enjoy.  (Some of them are pretty funny.  Wait, humor -- ?!)