Which I truly don't understand; for having cared and been around rottweilers for the past two decades, I see them as lazier than a cat, good-natured and easy to raise piles of fat. I've witnessed more aggressiveness from small breeds (chihuahuas, pomeranians... basically all these spoiled dogs not raised properly because they're obviously so cute when they hump your leg, nibble at your ankle, and pee on the couch) than from the big guys...