We have been through all this. Not with our present two as they were research beagles until 6 years of age. Our first beagle was a dreadful thief, she would steal socks, toys, peoples washing and food from grills. Our second beagle stole a whole camenbert cheese in a French restaurant. Your pup will learn to leave things alone, but socks and other items left lying around will be too much of a temptation for quite some time.