Domino went to puppy classes and was the naughtiest, most excited pup there, so it could be a Munster thing. She used to roll around on the floor, biting her lead and barking. I would carry on taking Brodie because the socialisation is very important, I didn't do enough with Domino when she was a pup and now we're back training again now at 7 years old. Brodie will get the idea and I wouldn't be surprised if he ends up one of the better behaved pups in the class.
The classes are about training the owners as much as the puppies, so you have training techniques you can carry on with at home. Domino is perfect at training but still has a mind of her own sometimes at home, so I am doing a lot more training in the garden and on our walks. She has been moved to the Improvers class tonight, I'll report back later.