Does your puppy steal socks? Does your dog run after the ball to fetch, but run around and not give it back?
If your dog has something in her mouth, you can do some training so you don't have to end up playing tug of war with your favorite shoes. Drop is not something dogs are born doing on cue, but it's easy enough to teach a reliable Drop. This video goes over 3 ways to train your dog to quickly drop whatever is in her mouth!