Love this comic from Cowbirds in Love. Unfortunately, it's got a bit of a "funny 'cause it's true" vibe going on. Last year, two sociology researchers at Oxford looked at the statistics of who becomes a terrorist and found that engineers were three to four times more likely to go down that road than peers in other professions.
Why? There's a lot of social background that goes into that question, but one key issue is that engineers just don't seem to be hardwired to deal well with shades of gray. They like things definitive and uncompromising. In fact, even when they don't turn evil, engineers are more likely than other science-based professions to describe themselves as religious and conservative.
(Comic via hectocotyli)