Car Wheels

How many of you remember that question on the driver’s license test that talks about which way you are supposed to turn your wheels when you park on a hill? Not very many is seems. On the way up the hill in the bus this morning I was watching the cars parked on the side of the street. About two thirds of them didn’t angle their tires at all; of those who did angle their tired, it was split cleanly half and half as to which direction they were turned. What I can’t figure out is, of those one sixth of the people who actually had their tired turned the direction they were supposed to, did they actually know what they were doing or did they just get lucky?