I miscalculated all of my exercise this morning!
Forgot that core strength class starts at 8:30 rather than 8:45 (this may have been lizard brain rationalization to stay in bed extra 10 mins.), realized just as I was about to leave and figured I'd go to 9am spin class instead - only spin class is at 9:30.
So I did half an hour of core stuff on my own and sauntered into the spin class at 9:25, only to find that all the bikes were already taken!
Walked back to the condo and set up spin bike here to do a Spinervals workout, only by this point I was distracted by (a) hunger and (b) news of Cayman earthquake. I wouldn't have known anything had happened, though in retrospect there was a moment of rumbling while I was at the gym that I assumed was the result of some overambitious lifter dropping a heavy weight bar to the floor!
I am now eating a turkey sandwich, will shower & spin/swim later...