ummm, i really dont see how barking o go outside will help anything.....you could try leaving the door to the backyard open, that way when he wants to go out he could,when i got Daisy (the golden) the breeder had aready housetrained her. With Molly (the collie) i left the door to the backyard open, that way she could go out when she needed too, and was housetrained in 2 days.