I used to change a few keys on the secretaries keyboard. She thought she had a virus. I also would hold down alt, ctrl, and press the left or right arrow key (try it on your own). She would turn her monitor on it's side and prop it up against some books and keep working. Another one is every time she would get up and start to walk away from her desk we'd call her extension and hang up right before she picked up the phone. She'd go back and forth 4-5 times before she ran to the bathroom.