Dogs are a person's best friend, guardian and protector. They are very loyal and if they feel that something is wrong with one of their loved ones, they will act accordingly. In particular, they take the role of the older brother or little sister of young children.
In the video below, the dog ball went off and went into the water. When his little man thinks of going and getting him, the dog immediately feels the risk of falling into the deep water and pulling it to safety.
To prove that the dog knew exactly what was going on, keep going on the water yourself to get the ball back! It is impossible to let his little leg go there. What a hero!