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Heh, I check my fly all the time too, except at school. Like 3 times after I went to the bathroom. I probably look stupid looking down at my crotch in public. 
I also pace a LOT. And I do things when taking a test in school like reading the question over four times and when I add stuff in math, even really simple addition like 7+5, I always use my calculator for it anyway even though I know it. |
I do that in exams. I've known my times tables since I was a little kid, but I still have to make sure that six times eight still equals forty eight.