My cats used to sit on the computer desk when I was online and then I installed a CFL bulb in the lamp behind the monitor. The cats quit sitting on the desk. The CFL bulb took forever to brighten, so I removed it and installed one of the old regular bulbs back in the lamp. The cats are once again sitting on the desk.
Awww! Too bad we can’t teach them to type. When I work at home, all they want to do is walk across the keyboard until I lock them out.