"Punishment or forced removal of items or food can increase the likelihood of the animal escalating…
"Punishment or forced removal of items or food can increase the likelihood of the animal escalating aggressive displays to maintain control of items. This fear-based response can result in the aggressive guarding of benign items that may not contain the same value as the original objects possessed by the dog."~John Cirabassi, board-certified veterinary behaviorist. https://pethelpful.com/dogs/Preventing-Resource-Guarding-in-Puppies
Exercises for Preventing Resource Guarding in Puppies
Preventing resource guarding in puppies is a fundamental process that is often overlooked. There are countless puppy owners looking for ways to stop puppies from resource guarding and countless resources on how to do just that, but there's little literature covering prevention.