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Originally Posted by supernurse  Then once he got ahold of my pants and growled and wouldn't let go. At one point in class the trainer came over ( he has been training dogs for 40 years) and he told me I need to get him under control or we will have a problem (duh!) and he smacked him on the mouth. He told me to smack him hard enough that the dog's teeth click together. |
Find a new trainer.....the one you have may have been training dogs for 40 years, but he's been doing it using the archaic methods in vogue at the time he first learned them and it appears he hasn't learned anything new since. This type of punishment for a completely normal puppy behavior only serves to antagonize your puppy, which makes it worse rather than better.
Obedience class at this age should be all fun and games for basic manners, not "obedience".
You need to consistently redirect to an ALLOWED chew toy and PRAISE when the puppy chews it and will need to continue this for quite some time to come. Puppies bite, puppies teethe, puppies don't know how else to use their mouths unless we show them.