I would be devastated if I would have hit him, no matter if he was feral or someone's beloved pet. Years ago before before I learned to keep my cats inside, I owned a sealpoint siamese by the name of Ming. She loved to roam the neighborhood. One year, two days before Christmas we could'nt find her. It turned out that she was run over and the car didn't stop. That was one of my saddest Christmases.