#7 Jack Russell Terrier

Despite their size, Jack Russell Terriers are highly energetic because they were bred for fox hunting. Setting limits at a young age is the best way to approach stopping violent behavior in your Jack Russell Terrier. You are their “pack leader” because you are their owner. Thus, by acting in a dominant manner, you can probably stop your dog from trying to overthrow the pack hierarchy. 

Russell Terriers frequently exhibit high levels of stubbornness. They are known for having little patience and being harsh towards kids. The majority of experts advise families who have young children to select a different breed, specifically if they are rookie dog owners.