Oh man!! I'm really sorry.
That's one of my fears. My daughter has a little dog that is her baby and he loves to race out to the garage as were are all pilling into the SUV. So far we have caught him in time but oh man..I don't know how my daughter would handle it if we accidentally ran him over.
I'm for sure going to be extra careful every morning to make sure he's locked up, before we rush out the door.