We have some pretty young teachers at my school, and though I'd say some are attractive, c'mon... they're your teachers -- they're like your away-from-home parents! I've heard stories about some girls who've had huge crushes on my current math teacher, who is about 30. I've never had a crush on one personally because 1) you wouldn't have a chance in the world, 2) it's considered unethical, and 3) it wouldn't work out anyway.