The son of a coworker of mine stopped into the office for a few minutes last week. My coworker told me today, the thing that stuck in his son's head about me? The fact that I was chewing on a toothpick. My coworker then commented that he had never even noticed...

I chew toothpicks every day. I'd have thought he'd noticed. That's all right - I'm sure there're plenty of things I don't notice, also.