Yeah. I do keep all of my papers after they're returned. Just in case. Thankfully the trimester is over and I'm almost done with high school so I won't have to deal with it anymore.
I was checking progress report online and he had given me a zero on some test that I know I took. I was annoyed but my final grade is an A so I'm not going to make a big deal out of it.
Making copies of papers is a good idea though. I wouldn't want people saying gay in my class either. One of my good friends is gay and she doesn't like when people use that word in a derogatory (sp?) way. It's just about respect