Gracie heard a fly in the house and fetching came to an abrupt halt! The hunt began. She did not rest until she beat it to death with her nose, on a window sill. She is so different than my mother's little Dachshund, Penny, who was afraid of flies. I had to hunt them down while she hid under a blanket crying. She could not come out until I showed it to her, and she knew it was dead.