Anyone "barking" a squirrel is nuts.
True and years ago, when I only had a .50, I tried it and it worked. I often state that as hunters, we are not out there to hurt animals but rather to kill game that is in season. We shoud not hunt if we can't do our best to dispatch the game as humane as possible. ....
Just do your best, in your own best ways !! ...
Be Safe !!!