Three-year-old dogs love to bite, how to solve it?

Go and see the dog monitor. This is a great dog training program. It's on PPS. The dog did this to you because of your connivance. Dogs are social animals, which means respecting the leader. In their eyes, you are just a follower, and the dog is the leader. Followers rob leaders of things. See which leader will let the follower. It is also very simple to change. First, establish your leadership position. At this time, don't pity the dog. You must be strong, confident and persistent. Don't hit or scold, the dog can't understand you. After that, the dog will eat again. When you step forward, it will grin, poke the dog's neck with its hand quickly, bend its hand slightly, poke the dog like a claw (this gesture is equivalent to biting it with its teeth, not too hard or too light), and force the dog to stand back and let the dog know that it is yours. After repeated practice, the dog will soon understand. Dog leaders always do this when they rob other dogs of food.