yeah, I think they should...
anyway, I understand that sometimes making jokes about serious stuff is ok... nothing to say to this.
I've been practicing martial arts for more than 10 years. you learn how to defend yourself or anyone in danger (or at least you are given a help on how to defend), you learn how to control your emotions, your reactions, and I swear that martial arts have nothing to do with violence. violence depends on the people, and on their minds... not on what they practice.
I didn't realized this situation had lasted over 1 year, I'm sorry... I understand why you can't stand it any longer and why you wish to smack him somewhere. so if you get annoyed by him again, use the pepper-spray, aim for his eyes and then just kick his nuts... and... you know the rest.
MAY WISDOM BE WITH YOU... FOREVER!!!