I use one of 3 methods if I don't want to kill or badly hurt the cat or dog. I use my pellet rifle with Beeman felt pellets, My AEG (airsoft), or my blowgun with blunt round ball tips. All will sting, but not penetrate the skin, even on a human. What I chose depends on what I have handy or the mood I am in. I don't believe in climbing a tree, pole or what have you to get an animal or bird down.Hmm,I'll bet those folks at the SPCA woud be oppossed to the method I would use to deal with a cat in a tree .