[SABELLESMOM]

As you continue to train, he will learn this is NOT playtime. It is worktime. His focus should be on you, not GSD's tethered nearby.

He sounds young and new to these situations. That's why he "broke." (left training and went to find a playmate.) He will need many, many proofings to proove he is reliable in OB. How old is he? How long have you been training? I would be interested. GOOD LUCK! You'll fix the problem I'm sure.

To the tethered dogs, because they are tethered and therefore, what space they have is their's. They will not take kindly to another dog, play mode or not, threatening to enter that space. He understands DOG language. He knew he was being warned off and hopefully wasn't looking for protection. He should be sensible, strong, and confident! I think he was simply responding to the warnings he recieved...that's sensible.