I've encountered my share of inconsiderate drivers, and I agree most of them are male. I think they just get off on startling people because they think they can get away with it. Not a week went by last summer where someone didn't scream or shout something at me while passing. The worst was when a guy pulled up along side me and starting barking. How do you not take offense to that? It kills me because these things always seem to happen along a busy road. It'd probably scare me to death if it happen on a back road.