Hide under the kitchen table with a sharp knife. When Hitler comes to get the Nutella, cut one of his legs off with the knife, he'll fall over. Then cut off his other limbs and trap him inside a garbage bag. Call 911 and the police will get him. Say you cut off his limbs in self-defense. Or take him out with the trash/dog.
Replace the Nutella with dead ants on dog poop. He'll be in for a nasty surprise when he takes a bite.