yep, it is about your mental state if you are freaking out then yes the dog will eat you up, but if you are calm then there is no way a single dog can take a full grown man. think of a 150 to 180 pound retarded 10 year coming at you with longer teeth and longer finger nails.
(do not take this as me saying i would not be afraid of a dog, but i like to think i would stay level headed enough to end a fight with an animal who stands just s few feet off the ground that can't grip me to end that fuckers life in a few seconds) my life before his for sure