@sunsetorange, we had two teachers at school and they both swear heaps. And it's a catholic school too. Students don't tell because we enjoy it and it's just an expression of emotion anyway.
My physics teacher swears quite a lot and I'm also in a catholic school and I've had a another teacher show an r-rated movie (abate the teacher did skip over the one scene that made it r-rated)
The shit college profs go to to get students interested in writing is stupid.