That's Buffy - cheerfully oblivious.

Buffy's weirdness censor has been recalibrated so many times, it's doubtful she even has one anymore.

At the old Roman feast of Saturnalia (which, by total coincidence, took place on December 25th), masters and slaves would trade places for a few hours. For a laugh. Then the slaves would go back to being slaves. I don't want to be too cynical this time of year, but...