No my dog has never growled at me. We tried to avoid any posessive behavoir since we got him at 8 weeks because often they growl at their owners only because they have something they don't want you to have. This doesn't necessarily meen that they will bite or attack you but it's still not something my husband or I would tolerate our dog doing. We don't have children yet but are planning to in the next year or so and we wouldn't take the chance. Since Goliath was a baby we tested him, take away his toy, his bone, his food etc.... Never had a problem. As soon as we reach for it he sits and gives it to us and patiently waits until we give it back. He doesn't even growl at other dogs, the neighbors dog took his bone right out of his mouth and Goliath sat and waited for him to give it back, needless to say I had to go get him another one. It was pretty funny.