hello,
our puppy is 17 weeks and we have no other pets but him. he hasn't been out much since this winter has been brutal(ohio) Last few weeks he seems to go absolutely crazy around other dogs(will not stop barking at them). He did this when I took him to the vet last week & he did it over the weekend wt my sisters 8month old german shepard mix. I mean he seems insane, as if he would tear up the dogs to pieces. is this small dog syndrome? I'm just not sure how to socialize him, if this is how he is acting. If it was the other way around, I think I would run the other direction if I saw a little dog like this. He is generally really good at home, other then lots of chewing. just not sure if this is normal or his personality & what I can do to help? I was thinking of puppy classes, but am worried it will be a waste of time if he acts like this. he is getting fixed on the 25th

any advice will help!! thanks