I was just curious if anyone uses a seatbelt harness for their dogs in the car and if so, what brand? My friend with a Rotty has one for his dog (the dog's way to big and his car way to small) for a crate, but I wondered how safe they are. Kane is all over the place in my Xterra. We put him in the back and he jumps over and falls over all the time. I really want to get a safe restraint for him.