Albert grew up around a large family with a dog...I imagine he spent a good bit of time with the dog and the dog looked out for him. When Albert has something he doesn't want anyone else to have in his mouth (usually a sock but sometimes a toy) he will growl like a dog. It is the oddest thing. When I or another cat approaches him while he has a toy or sock in his mouth he will trot off and growl . :lol: