If you had a job that required you to use a computer back in the early 80s, I think you'd want to play games on it instead of hammering numbers into Lotus 1-2-3, too.

F10 was what all the slackers at work pressed when their boss got too close for comfort. When you press the boss key, you're taken to a boss screen which acts as a decoy until the disturbances go away. Almost every game that existed back then had one. Nobody had computers at home, remember?