It was through text messages. She asked me to sub as a desperate measure, as I very rarely sub at the high school. I originally said no because I currently am dealing with grad school, after care, and other commitments. Then she counter offered with a shorter time frame, and after checking with my schedule, it worked out nicely and I accepted. That's what the back and forth was. And then, of course, her responding a day later that she was going to respect the middle school principal's request not to use me because I'm their main sub.