Like everything else in the world, if you don't like it, don't watch it. If your co-worker bothers you, then you could, like an uninterested or otherwise bored with NASCAR person, politely tell him, "Hey man, I don't care for watching NASCAR". It's really not that difficult. As for being a redneck sport, yes at one time it was but that's hardly the case now. Alot of people make the same argument about drag racing, but most everyone on this site would disagree. Just like drag racing has more preparation and strategy than just "go fast and go straight", NASCAR has more strategy than just "turn left".