? When he made a mistake (pee in the house, for example), he crawls towards me or turns around showing me his belly
It's not that he regrets what he did or that he feels guilty. He has not -the -notion to have made a mistake (on the contrary, pee has done him good!), It is rather that he perceived in the look or the "stiffened" attitude of his master a discontent, a threat, and he responds by anticipating the eventual punishment by a posture of submission and weakness ("the low tail").
? He barks on every person who passes behind the gate
It is a territorial defense bark for those who pass near his house. He wants them to leave and he is rewarded since they leave, so he reiterates this behavior! That he screams to death means the same thing, in another voice, it does not mean he is in distress. Some dogs are genetically more likely to scream. This is often the case with watch dog breeds. That he barks alone at home is the sign of an emotion (anger, fear, sadness) triggered by his isolation.
? He barks flattening on his front paws, hindquarters erect
This is a posture of appeal to the game. It's up to you to have fun with him!
? He turns like a madman around the table grunting
It is often a way of spending energy because it is bored and needs to go out. He may also be in a bad mood (grunts) because you're not feeding him fast enough or he's calling for more interesting activity (a bone to gnaw). See when exactly this happens and if it is repeated daily.
Thank you to Dr. Joel Dehasse, veterinarian, author of "All about the psychology of the dog" Editions Odile Jacob.
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