Fundamental attribution error from social psychology - you tend to attribute errors by others to their intrinsic flaws (stupidity, poor judgment, clumsiness) but your own errors to circumstances (I was tired, they tricked me, it was slippery).
http://en.wikipedia.org/wiki/Just-world_hypothesis
They are closely related but people always forget the second one.
I'm still for teaching common biases in secondary school. Won't hurt, and may sometimes help. But I don't think knowing biases changes people. At least that wasn't my experience.
My aim is to judge others by their repeated actions and track record. This is hard, but I've definitely found it worth doing.
Yet when he died, the people of Columbia wept in the streets.