So I have a student expressing interest in my classes. I know he's had some legal trouble in the past, as recently as a few years ago, and he has a bad reputation locally as a result. Ultimately the final call belongs to my instructor and I've already contacted him, but I'm curious as to what you guys would do in my shoes and also how you guys would feel as parents of my other students. He does martial arts in other schools currently for what that's worth. I have invited him to a class and told him he needs to fill out the membership forms first. I won't take his money until then and give him a trial period while my instructor makes the call. That's my "solution", what would yours be?