This is the reason we crate our dogs. My one Golden suffers from separation anxiety and shreds paper to thousands of tiny pieces. Thank God she has never done anything else We breed her and kept one of her puppies. Now she has a companion so we don't crate her anymore but we still crate the pup for housetraining purposes. My suggestion would be to either crate your dog while you are out or get a doggie door that would enable the dog to come into the house when he gets over heated. Best of luck