It is pretty cut and dried as far as I am concerned. His smoking inside a place where you are can cause lots of problems health wise to others around himself. He can kill himself if he wants to by smoking, but he can not make that choice for others around him. Therefor, if he wants to smoke, go sit in his car and smoke, but don't subject others to his second hand smoke. If he can't understand that you don't want to die of lung cancer or other second hand smoke ailments, then he can go home and be ticked. No loss. I never understood the mentality of smokers.

What do most people in a burning building die of? Breathing the smoke! Why suck a bunch of it into your lungs willingly? Things that make you say HMMMMMM!