one time i was riding my bike on the sidewalk around an airport and this huge obstinate weightlifter dude about 6'5' and 250 lbs was rollerblading with his workout bunny and he refused to move so i could get around him and he made a smartprettythang remark at me.
I told him, "You know, I've got half a mind to get off my bike and kick your prettythang right in front of your bimbo." He was so pissed he tried to come after me but he lost his balance, and was doing one of those "whoaaoo" things, waving his arms in the air. "I said, "Look at you, you dumbprettythang, you can't even skate."
Then i took off on my bike before he could take off his skates and try to catch me
the moral of the story is, always try to have an advantage of some kind if you are gonna mouth off at somebody bigger than you.