Isn't that the truth - I have a rott/chow mix - both of which are supposed to be so called "aggressive" breeds. Leo never meet a dog or human that he didn't like. The biggest problem is that with large strong dogs (if they aren't socialized and trained properly) can overwhelm people that aren't experienced with the larger breeds. That is why I always recommend the Gentle Leader or equivilent when my friends get large dogs.