LH's explanation makes sense. I can't think of a better one. As a former state park ranger, I've killed more than my share of rabbits, and not because I wanted to. They just ran in from of my car, and trying to avoid them is impossible. Just be glad you don't have to clean up the mess like I did (the public can't see dead animals, it upsets a lot of them and they want explanations as to why you allow them to get killed). Rabbits are a pain to clean up, because they are very loosely attached to their skin, and in a lot of cases, it comes clean off when they get hit by a car.