ehayes21
Boxer Insane
It is a rare puppy that doesn't growl at some point. I think the growling with the leash was just play, and it nothing to be concerned about.
Growling is not something that you ever want to discourage. A play growl is okay and you need to learn the difference between that and aggression. If you punish a dog that growls, you may end up with a dog that bites without warning and that is not a good thing.
That is a very good point.