The ancestor of dogs is wolf. Some dogs will preserve many wolf characteristics. It is best not to raise this type of wolf-like dog. Because they are also like wolves, very blood-devouring, cruel, and very personal. A wolf-like dog is like a bomb placed beside it, it is unclear when it will "explode"!
Some dogs are more nervous and will be very smart when they are smart, but once something unpleasant, they will be unable to control themselves, and they will accidentally encounter it, and even step by it and have to bite you. This kind of dog with severe emotional instability is best not to keep, and you must take a detour when you see it!
There are also some dogs who are very straightforward and easy-going and can play with everyone, but they are also very physically and mentally exhausted when raising this type of dog. Sometimes, if you take it out, you will be able to run away with people at will because you are touched by someone's head or give it a piece of meat.
Why can’t dogs keep their owners too much? Because for dogs with attack ability, putting their owners too much in their hearts is likely to hurt others. When the dog sees the owner at risk, sometimes even the owner is at a disadvantage when playing, it will "take action" to rescue him.