How my teachers must have felt all those years! As I have been teaching for a few years in Korea, I realize all of the little pet peeves my teachers must have had: students trying to finish homework in class, drawing on the desks, one-word/monosyllabic answers, playing with things in class, forgetting books/homework, passing notes...the list goes on and on.
Every time a student commits one of these infractions, I grit my teeth, administer the proper punishment, and silently offer a prayer to all of my former teachers for tolerating and instructing me. I also silently hope that I was never that bad of a student! (I'd like to think not, since I went through school as a fairly quiet child who rarely--if ever--forget her homework. And yes, you can put the geek/nerd comments away now, thanks. :-p)
The saying goes that you don't really know someone until you've walked a mile in his or her shoes. And I think now I can really understand what that means.
Fellow teachers: what's your biggest teaching pet peeve?