The attacker is described as a toy bone approximately 4 inches long.

A pug puppy named Knefel was attacked recently in his own home by a toy bone in a brutal assault lasting nearly thirty seconds, and the entire episode was caught on tape. In the video posted by YouTube user Jak pies, you can see Knefel fighting off the assailant, who repeatedly lunges at him in an aggressive manner. The tape ends before the police arrive. There were no reports of injuries.

Sources: Tastefully Offensive