Hello, My 16 month old yellow lab (not neutered) is really bad when meeting puppies. Is this normal? It’s not puppies which are misbehaving, but rather ones which submit and lie down. He’ll jump and growl at them aggressively. He did it twice today at the park, once with a puppy who lay down and rolled over but then the second time was with a puppy who was happily playing with a group of dogs (my dog included). The poor thing ran away scared. His recall is good so we have no problem getting him back, but it would be nice not to have to worry about him constantly when we’re at the park!