I'm surprised I wasn't mentioned.

The stupidest person I know offline was the only person to really tick me off at college. Offline I am very laid back and apathetic and don't give a damn about people enough to be bothered by them, but this one guy, Patrick, succeeded in being so mind-numbingly stupid that I couldn't tolerate him. He was such a self-entitled jackass that thought the world revolved around him, I'm getting irritated just thinking about it. Thank god I never have to see him again.