Good for Joey the Squirrel!
My wife brought home a squirrel that had been hit by a car. The back half of the squirrel was paralyzed so she called the “wilderness vet” to ask them what to do. They said she was breaking the law by illegally harboring a wild squirrel. They said she needed to immediately bring the squirrel in to be put down or they would call the police. My wife hung up on them at that point.
We had a wienerdog who became paralyzed after jumping off our John Deere bulldozer; he got better after a couple months. We had the squirrel for 2 months and it got better except for its tail which it no longer could curl over the top of itself. So we let it go and it hung around our house for a couple years after that.
We named the Squirrel Princess Meany Pants. She was never happy about our efforts to help her out. Even with its back half paralyzed it was still much stronger than you would ever expect. She scratched my arms up on a couple of occasions. She had very strong jaws and did her best to bite through the leather gloves that I wore when handling it.
So my whole point is that even though squirrels look cute they are strong, they have sharp claws, and they have powerful jaws. If you had a well trained gang of squirrels they could definitely discourage intruders in your home. Unfortunately, the one we sheltered for a while wasn’t trainable and never became friendly toward us. I assume Joey was rescued by his owner when he was very small.
Powerful jaws and sharp claws! Not helping.