likely, he imagined he was quietly resting in his bed, not understanding he was unconscious and lying on the pavement as automobiles tried furiously to pass.
Because the man was in danger, the dog blocked him and snarled violently in order to protect him. The animal companion was willing to go to any extent to save his owner's and friend's lives.
After some time, the man started to move, and someone removed his cycling helmet, enabling him to lay his head on the ground without the dog noticing since he was focused on the cop.
After some time, the guy opened his eyes, raised his head, and thanked his dog.
3/4