http://superuser.com/questions/229362/fixing-bent-pins-on-a-cpu

> While replacing a mainboard in a desktop machine (see related question), I did something stupid. I inserted the CPU into the new mainboard, but didn't check for the right position. When it didn't immediately lock in, I pressed slightly before realizing what was wrong. The result was a number of bent pins.

Definitely one of the more Super User-ish questions that I've seen :-)