your wrong incy want about the other maybe 3 r 4 lad,s who might be watching the dog pull the hand brake . i had a few pull up but i gave them away but i told new owner what happened and they turned out better fox dog,s. no am not wrong only the owner really knows when a dogs pulls up that theres something wrong with the dog. Not ever dog that pulls up is a jacker. Some dogs are put in a place where they just cant get out off.