Let's just say, I was going home and I realized I left something important in class, so I went back to class to get something back and guess what? I caught a classmate masturbating. I already saw the look of horror on his face, and I think I looked no different. This is SO frigging embarrassing, although I think it is 1000x worse for him, and even though we all do that, I still don't know if I will ever talk to him again. What to do?