Rottweilers are not naturally mean or agressive dogs. We have owned many, and own our Lovely Brutus now, and they are the worlds largest Teddybears!! They are very people orientated, and do not like to be seperated form their families. Rottis do not make great outdoor dogs, specuifically because of their need to be with their humans. All of our rottis have come from bad backgrounds, including one which came from a fighting backgroud, and every single one adapted very quickly to indoor family life. We have never had any problems wit anypf our rottis. They just always aim to please!! I love my rottis!!