I usually respond to "what the Hell are you looking at" with "
Oh, i don't know, Dead beat dad, Highschool drop out or maybe both" or "
Society's Problems" or "
The new pro abortion poster child " depending on the situation.
Seriously,I really do stuff like that(only if deserved). I have never had a problem telling em like it is though. It makes them looked puzzled for a minute and sometimes they have to turn to their passanger and discuss it for a minute. By that time they can't even see my bumper.