This method is well proven.
The video is well done.

A well done Fox Squirrel cooked by this method however, will prove difficult at best to chew. You cannot cook a Fox Squirrel to long. Keep it in fluids of some type - butter, oil, soup, etc, etc.

I only cook squirrels in a crock pot with a can of Campbells Manhandler Soup.

Another skinning method is simple if you have some upper body strength. Cut off the head, 4 feet and the tail. Lift up the skin in the back half way between the hips and the shoulders. Cut the hide perpendicular to the body with the cut big enough to get both hands in. Now pull it apart.

The video method is poor for rabbits. The above method works very well for rabbits. On both species, check the liver for large pink blotches.