do you think dog turns agressive because of the way their owners bring them upor is it bad genes

i have a doberman and was just reading about a very stupid guy whos doberman bit a three year old. i thought there was some very conflicting opinions. i am concerned that people class certain dogs as dangerous when all dogs can be lethal.before anyone says it, im currently looking into one to one dog trainers.

No puppy was ever born into this world mean. While some dogs are better suited for certain types of work (guard dogs, police dogs) those dogs are generally not agressive until their handlers instruct them to act - they certainly never seek vengence upon criminals -- dogs have no such motivation.

However, dogs do not like people who mistreat them and will wisely growl at those who do in self defense. Dogs are territorial and those dogs who have established territories -- say a fence line within a yard, will patrol their yards and bark at people and dogs passing by.

About your doberman -- they were bred for a purpose. In that breeding is a hundred years of instinct - which is why people classify them as potentially dangerous. Some dogs hunt, other's swim, others chase.

Size matters as well - - it's the law of common sense -- the bigger the dog, the bigger the teeth. While your dog is potentially a dangerous dog -- it has a well deserved as well as an ill gotten reputation. I've seen some dogermans who were as dumb as a rock and never seemed to grow out of puppy hood - and others I would not go within a hundred feet of.