how old is zeke? how is old is jo? has zeke been doing the nippy thing all along or is this a new/recent behavior? between the 2 of them, who is the alpha? what did the vet say about this behavior?
alex the wonder dog was a teenage brat , and after he'd gotten his adult teeth and had plenty of chew toys, he decided that nipping humans was fun. i got a soft cloth muzzle to put on him when he got nippy, and in a very short time, it worked. if he got excited and started playnipping, all i had to do was hold the muzzle up, and the behavior would stop. i only used the muzzle in the house and only when he was in the room with me, he never ever wore it for more then a few minutes at a time. i haven't had to use the muzzle for years and the behavior stopped. hope this helps, joyce