My 10 week old pup has an attitude of what’s his is his and what’s our other dogs is his too! We have to separate them when our older dog has a pig’s ear because pup will steal it and older one will let him, then just look longingly 🙄… If I try to take it back the pup will get grumbly. I’m reading about resource guarding. But any tips to nip this in the bud?