I had a couple classmates that pretended to be vampires back in elementary and middle school. They’d pretend their Koolaid was blood, complain about the sunlight, and bite their friends a lot. Not enough to draw blood, though. I haven’t kept up with most of them, but one guy is a teacher now. He seems pretty normal.
My first girlfriend was one of those cat girls. We were like 13 when we started dating. She was really unstable and ended up going to jail twice long after we broke up. I sure know how to pick them lol. In my defense, she was the only lesbian I knew at the time.