Thanks Amanita and Turncoat, you are both strategic and wise. ;) I'm not worried. My room mate is a hulk plus we have a big dog everyone's scared of. I think the guy was a show-boater, big talker no jazz. I told him I wasn't interested and he's backed off.
(and I found my charger -- I kinda wish he would stalk so i could hit him with a jolt just to try it.)