Me [singing loud enough to be heard outside]: WOO HOO!! DING DONG! THE WITCH IS DEAD!
John: What are you talking about?
Me: You said you were leaving, right?
John: Aw, that's just wrong.
I'd love to say that I was taking advantage of the fact that I technically no longer work for him, but the sad truth is that we've always given him that kind of grief.
Some days I don't mind coming in to work. :-)