My cat knows to stay away from my keyboards. He still climbs on the desk and fur gets everywhere though.
He wants to sleep, on my lap, since I'm doing homework, he takes advantage of an empty keyboard.
I don't want to use what I've dubbed "The Punisher"(windex bottle replaced with water) near the keyboard, or my monitor. If I miss, monitor is wet, and cat will run scared and possible mess up my board trying to run off of it.