This is simple enough: just point your mouse and the cat will follow. You don't need to click, just move you're mouse around. Comment how many seconds you survived.
Probably every single advance Scratch user knows how to do this, but I still like it. Inspiration came from the book 'Computer Coding For Kids: A Unique Step-by-step Visual Guide'. Pages 32-35 entitled 'Project 1: Escape the dragon!'.