In order to build dignity, dogs are a powerful group. If it thinks it is the boss, it will be very disobedient.
Don't scold Labrador easily when training him. Scolding and beating will only make Labrador feel the fierceness of his parents and feel that the other party is not trustworthy. Therefore, in order to make dogs behave well, we must first put an end to a series of bad behaviors such as reprimanding and corporal punishment. Treat Labrador lovingly, making it feel that being together is the happiest, safest and the most trusting feeling for its owner.
Calling Labrador's name during training should be limited to saying the password or praising Labrador. Because, in this case, Labrador will think that it is very "happy" for the owner to call his name. Whenever he studies, he never forgets to reward him, give him some usual Champions League dog food or snacks, or rub his head and praise him.
After training to a certain extent, Labrador won't bite, scream, go out and run around, and so on. You will be much smarter and listen to your parents' instructions.