Hi, we have an 8 month male GSD, who consistently bites and tries to play tug of war with the leash when my husband takes him on walks. He does it with me but not as much. We thought a chain leash would make him stop a bit, but it hasn't. Any advice? He tries some of the things I have learned in training but they don't seem to work well with him.
I tried to upload pic, but it is sideways, sorry!