Monday, Tuesday... or something like that

Yesterday, over halfway through the day, I realized that it was NOT Tuesday. It was Monday.
And I realized this just in time, as I was all dressed for band rehearsal, and was just getting ready to leave for Hillsdale.
It would have been quite a shock, to drive all the way over there, and wonder why no one else had shown up.
How embarrassing.
(I was sober the whole time, I swear!)