Can we really expect a puppy (less than a year is still very much a puppy) to know everything it needs to know?
BTW..."no", we can't expect them to know it. That's why we teach them.
Since the OPs response was..."I'd better not play like that again with the Pug", that's why I asked why the dog should dictate how you play.
I'd never let a dog dictate how my house runs or what they "approve of" or not.
Just because the Shep doesn't care for how the dog is playing with the owner, doesn't mean "I can't do that anymore". It's a dog. Teach it that you are in charge, teach it that you can play however you want and so can the Pug.
It's a bit concerning - well, a lot concerning that his puppy is not even 6mos. and has already had a fight with the Pug (did I read that along the way?) and is now controlling how the Pug interacts with the owner.
Just don't let it happen. Leash the brat puppy and continue to carry on as usual. When this dog gets to be 80+ lbs., life's gonna be real interesting since the dog
is apparently calling the shots.
We use Mind Games (version 1.0) by M. Shirley Chong
to remind the dog that we are in charge, not them.
Kristi, I was just going to suggest putting that puppy in a "long down" (which, at 4mos., should be around 5-10 min) while the Pug and owner play.