Did my hybrid go on strike because I didn’t ride it for a few days?

This morning I had a 9:15 doctor’s appointment; and I though I’d ride the hybrid there, then do a few easy laps around the park. This plan was thwarted when I went to pump up the hybrid’s tires; and discovered that the rear tire was thoroughly flat. I know what to do to change a tube; but problems with my hands make the job difficult at best.

I had to walk to my apppointment; and when I got back home, I rolled the bike over to the shop. On the way, the tire came off the rim; and the tube somehow got all tangled up in the cassette and derailer! Then the wheel couldn’t roll. Holding up the rear of a bicycle is much harder work than holding the front wheel off the ground; but it was the only way I could keep going.