I wouldn't have been nice to that guy at all. Snatching my dogs leash like that and treating a dog in such a way, especially a dog that isn't his, would have been enough of a reason to beat him with the leash for me. Inexcusable. Especially telling you that you're basically too girly to train a GSD when truth of the matter is, the majority of GSD owners I've known, the dogs have all the been females dogs. I cant stand people like that. Sorry he set you back in training.
The more people I meet and talk to,the more I love my dogs and their intelligence.
Shasta GSD 5/5/10 CGC
"Dax" Thor z vom Weberhaus 3/18/2013
Zena GSD 6/1/03
Riley GSD/BC 1/10/05-2/1/2013