I found this through pattern recognition. The beast pictured below, Eustace, has twice caused considerable damage to my last PowerBook. If only there were a Mac version.
PawSense
"When cats walk or climb on your keyboard, they can enter random commands and data, damage your files, and even crash your computer. This can happen whether you are near the computer or have suddenly been called away from it.
PawSense is a software utility that helps protect your computer from cats. It quickly detects and blocks cat typing, and also helps train your cat to stay off the computer keyboard."
