Terriers lead that list and it isnt strange considering their unpredictable temperament.
Rottweilers on the other hand are generally very calm and loyal dogs. You can train them into family dogs and guard dogs at the same time. They are very friendly and can actually turn out good even in inexperienced hands which isnt true for many breeds.
Anyway any dog can be a killer or a harmless family pet. In 99% of all cases its the owners doing. Like master like dog.
Problem is a lot of clowns get a rottweiler/dobermann just to look cool.
