Watchdog and the Coyotes

Some dogs have a bark bigger than their bite. But Sweetie, The Great Dane, can't afford to bark -- or bite.
After three little nips and three masters, the next stop is the pound. So when the burglar comes calling, he waves his tail. When coyotes come prowling, he tries to make peace -- as they howl in scorn. They promise they'll return -- to eat his food, his friends, Red the Irish Setter, Poky the Beagle, and Sweetie for dessert!
If Sweetie can't protect them they'll all perish! How can he...