Catproof your computer

I don’t have cats anymore, but if I did, I’d buy a copy of PawSense:

Once a cat has been recognized, PawSense blocks the cat’s keyboard input. This keeps the cat from entering lots of commands to your programs or operating system.

If a cat gets on the keyboard, PawSense makes a sound that annoys cats. This teaches your cat that getting on the keyboard is bad even if humans aren’t watching.

I’m safe until Illa figures out how to climb, and if he then gets on the keyboard, he’d probably crush it.