It's all in the way you look at people

A couple of weeks ago, I was walking down the sidewalk running an errand. I was about to cross in front of a car that was pulling out of a grocery store parking lot, when the car didn't stop. He was almost at the street when he noticed me and braked. I gave him my patented look of death and continued down the sidewalk. A few minutes later, this guy comes running down the sidewalk at me. It was the guy from the attempted killer car. He ran down the street to apologize profusely for not stopping. When does that happen? Obviously my look of death has taken on new levels. I'm thinking that I should tone it down to a glance of damnation, or a squint of head trauma.