Ceasar would be the first to tell you what a dangerous breed a Rotty is, if you don't know what you're doing. Ceasar is a professional. You said it yourself, "When in correct and knowledgeable hands, they are a great breed!" But there are many people who buy the Rotty as a "status symbol". They're not professionals, and they don't know what they're doing. In their hands, Rottys are a dangerous, violent breed.