It's a good thing that your bf is thoughtful and concerned. If he wasn't then I'd think you'd have more to worry about.
Like Tiki said, he could be the most non-violent person you'll ever know.
There's a story about two brothers, their father was an irresponsible alcoholic and beat them constantly. One brother dropped out of school, turned to a life of drugs and crime and spent most of his life in jail. The other brother did well in school, went to college, became very successful and had a wonderful family. When each brother was asked why they turned out the way they did, they both had the same answer..."with a father like that, how else could I turn out."