I think most dogs will do the same. I know mine do. Well, Jazz does anyway. She doesn't like it when we play fight. She'll growl and nip at who ever is the aggressor, usually just at a sleeve or pantleg. Chopper just jumps around trying to play. :roll: I don't encourage the behavior, but I don't really see it as a problem. Do I think she'd protect if it were a real attack, doubt it. But who knows. :dontknow: