oh... poor thing... he looks just like my dog. I always make very sure to stay away from any slightly aggressive dog when I walk my lab. He gets snapped at by alot of dogs and he is so gentle that he would not even try to fight back (ie. he would end up in just as bad shape as this poor lab above). All of the people who walked pitbulls at the park I would take my dog always had them on a 2 foot leash with either a harness or a muzzle and they would get really aggressive any time my lab got near them. Some dogs are more aggressive than others from birth... I can't really see any logical reason to get one that has been bred for attack.
Just a side note; if you have a dog that attacks a person are you held responsible for the death or maiming? (this is regarding the pitbulls mauling little children you seem to hear on the news every one in a while)