Because Buffy really has become the straight man, every once in a while it's nice to be the one that tells the joke and it's nice to be the one that is the joke and it's nice to do something that's a little bit different.
“Your memory is a monster; you forget - it doesn't. It simply files things away. It keeps things for you, or hides things from you - and summons them to your recall with a will of its own. You think you have a memory; but it has you!”