As I stood in front of the classroom door waiting for security to arrive to let me in (they don't give keys to subs during summer school), the teacher arrived. He was going to be out the next day.
Upon conferring with the summer school principal, he figured out that he had written the wrong day on the request. ("I'm bad with numbers. That's why I teach history.")
Several thoughts went through my head. What was I going to do with my day now? I got up and dressed this early for nothing? But before I could contemplate driving home, the summer school principal had turned her and my attention to a different teacher.
"She can cover your class."
After a bit of confusion, what was happening became clear. The other teacher, Ms. M, had just been discussing with the summer school principal getting a sub so she could leave that day. Her husband was in the hospital. And while she was just hoping to leave early, since I was already there, she could leave immediately.
Perfect timing. And a mistake that turned out to put me right where a sub was needed.
This is not the first time this sort of thing has happened. (Luckily I was on hand on a day when a teacher learned her brother had just died in an automobile accident.) I just didn't expect it to happen in summer school.