I only have slightly below the shoulder length hair, and I frequently:

-eat my hair. Seriously. It _likes_ being in my mouth.
-lie down on my hair in a way that I can't figure out how to get back up again for a second or two, because I've trapped my hair under me, and therefore can't move my head

My hair is also _very_ thin, though, so it doesn't take forever to dry. Of course, I doubt it'll ever consent to being much longer than it is, either. Ah, well.