i just got a beagle puppy a couple of weeks ago. he is about 13 weeks old. i have never seen a puppy that actually attacks other dogs. he has done this a couple of times to my friends boxer puppy of the same age. over a toy one time and just during ruff house the next he will literally freak out attacking and biting to the point where i had to pull him off the boxer puppy. also when i first introduced him to my sisters lab he instantly (without me even setting him down) started growling. but there’s another lab that he’s met that he is fine around. along with this Australian Shepard he plays very well with.
i heard beagles were supposed to be great with other pets so im a little confused. idk what to do. im scared to even bring him around other dogs anymore. how do i punish him appropriately when he acts this way?