Something you can try:
When he does this, put him on his back (submissive position) and hold him down and look him in the eyes and firmly say No, then let him back up and ignore him for a few minutes. If he starts again, repeat. When your holding him on his back he should actually avoid your stare showing that he is not confronting you, accepting you as the pack leader, and backing down.
Don't know about holding his jaw shut, that does seem a little risky, but watching a Mom raise pups she will nip them when they get too rough. Never had to do it with a Yorkie, but my Malamute I pinch her ear. Before anyone gets upset, take into consideration I weigh 100 pounds - she weighs 120 lbs. and is built to pull sleds. She has incredible strength and can easily pull me wherever she wants to! If we are walking and she sees another dog she wants to go visit - we're going - but, since most don't want a huge dog approaching them, I have to do this to take her out of this trance she gets into so she is aware I'm there and she will listen to me. |