Honestly, it depends on how attractive the teacher is. Same with the groping. If that makes me a pig, so be it, but I can't control how creeped out I'd be in different situations.

Again, it boils down to not having to worry that the groping will escalate beyond some threshold. In the back of my mind, I know that I'm ultimately in control with how far down the path it goes. If I want it to stop, I can make it stop. Of course a female in the reverse situation can't always say the same thing.

If I thought I was in danger of being raped, I'd absolutely have a problem with unwanted contact, even by an attractive woman.