There are certain dogs I simply will not fork with. One is the Neapolitan Mastiff. Friend of mine had one and at six months he was well over 100lbs. and stood over my friend, who's easily 6' 4", on it's hind legs. So considering that and the fact that he was fast as all get out with that huge head and drool everywhere, that was a big nope for me. Don't invite me over ever again unless he's kenneled and highly sedated.