I've had cats and never thought about using aluminum foil to deter them. Clever, but not so good for kitty.

https://rumble.com/v5idiqh-cats-really-dont-like-aluminum-foil.html

I love all cat videos. We have 3 cats and have always owned multiple cats before these.

These cats act like the foil is an antimatter shield and they are being repelled powerfully.

(I need to try this here... evil grin)

Cat videos are the best. I am always amazed by how agile they are. If I still had my cat I'd have to give this a try too because I'm evil just like you. I've always had cats too. At one time I had cats and dogs. Now I am cat-free though.