07-13-2018, 09:06 PM
Join Date: Jun 2017
Location: Cambridge MA
Mentioned: 50 Post(s)
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Let him play with other puppies and other dogs that are well socialized and good with puppies in a supervised environment when he's old enough in terms of vaccines. Bigger and older dogs and assertive small dogs will quickly teach him appropriate manners without hurting him.
Doggy daycare, dog park with good responsible owners, play groups. That being said some dogs like to play rough with their friends and are better playing with dogs of equal size. Some dogs are never reliable around little dogs and cats. Terriers tend to be bred to hunt and kill small animals and view them as prey so while you can accomplish a lot with training, you have to be realistic with instincts too.
My ninety pound dog loves to wrestle and play very rough with dogs of equal or bigger size. He won't play with smaller dogs or puppies at all. If they try to play with him he either walks away or just let's them chew on him. He's very gentle with them and my cats. I never trained that, it's just him. His particular instincts. I'd never try to curtail his rough wrestling with his large buddies, he loves it and there's never a mark left.