dlex700: Actually, you are right. In fact, Wally stated years ago that he already had enough money to retire, but stay in the company because he doesn't know how to make coffee.
Between us, I think another reason is to chronically pull boss/cow-orkers legs.
Had the same kind of response from my boss, although it was directed more at himself, since he couldn't retire, and had to put up with me in retirement mode for almost a year.