I have told him he is not allowed to store it in the bedroom because he sometimes has wild dreams. Last night, he attacked me (kicking and hitting) in his sleep because he dreamt I had turned into a werewolf. The sword is safely stored elsewhere in the apartment.
I'm going to sit in on one of his classes to determine whether I'd like to take the course in the next semester. In my case, it would be for fun and fitness. Of course, other things are taught...like safety, chivalry, honour, and discipline.