I have figured out why it was so busy Thursday night, swamped Friday night, and now nice again tonight (okay, I just jinxed myself again.)
The reason is because on Friday night I wasn't able to park in my lucky parking spot. Yep, that's the reason. When my parking spot is taken, that means that we are busy and going to continue to be busy.
More often than not, barring a full moon, my parking spot means a good night is on the horizon. So far tonight (unless I have jinxed myself here for gloating -- SEE RT Cave #28), it's been really nice here.
Thus is how it is when you work at a small town hospital.