I guess I shouldn't take it so personally. It doesn't help that most horns are really jarring, but they do have to be heard. It was strange, I actually did what you described the other day at an intersection. I was looking for a CD and the the light had turned green and there was traffic behind me. I didn't notice it for about a second or two and the van behind me never honked. I'm sure the driver felt the same way about horns, that they just end up pissing people off. He/she gave me at least a second or two to realize what was happening...and I did maybe unlike the policeman.