I'm guessing cost/hard to find time off would be pretty up there reasons as well.

LET ME KNOW WHEN YOU PLAY

It's one of the most valuable things I can offer as a teacher. When I get down about feeling helpless, at least I can be a secure place for students. As long as you can be a welcoming spot for someone, that ain't nothing.

Or jumping on them and kissing their face. Or sniffing their crotch.

I liked the second better, but I played it as a kid and the first in college. I'm guessing nostalgia played a huge factor.