The dog, which authorities think is lost and not a stray, successfully thwarted a robbery attack on a mother and her 2-year-old son, who were held at knifepoint Monday afternoon.
The Florida woman, who has been identified by authorities simply as "Angela," was leaving a playground with her toddler son in Port Charlotte when a man approached her in the parking lot with a knife and told her not to make any noise or sudden movements.
Angela didn't have to do either to protect herself and her child -- a dog mysteriously ran to the scene and charged the man, who quickly fled.
"I don't think the dog physically attacked the man, but he went at him and was showing signs of aggression, just baring his teeth and growling and barking. It was clear he was trying to defend this woman," Animal Control Lt. Brian Jones told Pet Pulse.
"I don't know what this man's intentions were, but it is very possible this dog saved her life."
The exceptional part of the story, Jones said, is that the dog had never met or even seen the people it quickly jumped to defend.
"You hear about family dogs protecting their owners, but this dog had nothing to do with this woman or her kid," Jones said. "He was like her guardian angel."
Very cool! Dog hero of the day award goes to this guy for sure!