You should ask him if he listens to country music, as far as statistics go, those who listen to country music have the highest likelihood of committing violent crimes that are not gang related. Also ask him if the fact that he is a man predisposes him to violent crime as well. That combo? He is almost GUARANTEED to run off and shoot somebody after a bar fight. (This is where you would notice my eyes rolling if we were speaking face to face.)
I think there is probably a lower likelihood of violent crimes being committed by the s&m community. Afterall, we HAVE outlets for our aggression.
Music, movies, video games, sexual tendencies... these do NOT lead to violent crimes. Sociopathy, psychosis, repeated abuse, and poverty are ALL linked directly with violent crimes.