Did the vet have an opinion on what kind of wound it was? They can sometimes tell if it was slashing or ripping that did it.
As for all the teasing about no cougars and other animals, there's usually a period when they take in reports of sightings and proof before changing it from "locally extinct" to "rare" and so on. Let's face it, there's plenty of people who see a small cow and insist it was a fire-breathing bull. They can't take every report of a cougar at face value, although video and photos of pug marks with a ruler by them go a long way.
As for all the teasing about no cougars and other animals, there's usually a period when they take in reports of sightings and proof before changing it from "locally extinct" to "rare" and so on. Let's face it, there's plenty of people who see a small cow and insist it was a fire-breathing bull. They can't take every report of a cougar at face value, although video and photos of pug marks with a ruler by them go a long way.