"Has everything to do with people to stupid"

Is there a witty law named after this phenomenon? I recently had a reply to me that started, "you're idiocy is" and I think the odds are significantly higher that a mistake will be made whenever someone else's dumbness is being pointed out.

OK, back on topic. My pet peeve with drivers is that I often see them approach a stop sign to make a right turn, but as they approach they stare to the left to look for traffic, and absent that will coast through the stop. But they stare to the left the whole time! If I'm walking from the right and want to cross, I will consider the stop sign and that I'm at the intersection first, and step out. But then I'll realize I never made eye contact and that the driver is still looking to the left and leap back just in time.