My cat showed some exceptional ability. But not only one thing but now two!

First one, which I know some cats do is open doors. I’ll be asleep, hear a noise and it’s just the cat opening the door. Impressive. But some cats do it. But today she showed more strings to her bow. I look out the window and she is taking a dump in her litter box, now this is one of those climb inside bad boys. She is hovering like a woman taking a piss in a tolilet. Just hanging on the edge taking a kid air dump like humans do. Tell me what your cats can do? I’m not sure what she is gonna do next? What is the limit of cat intelligence. Her name is Pepsi, she is a very clever cat.