Why am I so bloody cranky lately? Is it just the big delay getting in Sunday night (they delayed the plane 35-40 minutes waiting for some people in Customs to make the connection, so with that and being at a different gate in SF and a mix-up with the baggage carousel, I didn't actually get home until 1 AM) plus the fact of having to jump right back in at work with not enough students and no time to re-adjust? Or is there something else going on? Blah. Sorry if I've snapped at anyone in a more bitter way than usual today.