So now that I'm kind of starting to look around for a CFI job, I've been freaking out about getting international students who don't speak good english. I couldn't imagine spending hours and hours with someone trying to teach them how to fly if you can't even understand each other.

For those of you who have taught non-english speaking students, is it really that bad?

If so, what kind of schools are more apt to have those kind of students, and which ones aren't?