I watched a video of dogs going behind people and biting their legs. Some dogs were too stubborn they rather die than let go of biting tendency.
There was a dog, who was so happy whenever he saw the Peccekabuddha.
An Account of Rich Man Ghosaka of Kosambī Country [Chapter 27a]
When the little dog discovered that the Paccekabuddha had left for good, it died of broken hearted and was reborn in the deva realm of Tāvatiṃsa.
He was endowed with a voice that excelled that of the other devas of the celestial world, as a reward for barking aloud and frightening the beasts of prey as he passed through forest in the company of the Paccekabuddha in his previous existence. It was therefore known as Ghosaka Deva for having a voice that covered the whole of deva realm.
Venerable Maha Kassapa gave a visit to the lady with a great heart.