Evening Cancelled in Frustration

I turned up to teach and found that the projector in my class was in the same state as the previous week. Attempting to find and set up a replacement produced such an unsatisfactory result that I cancelled the class. Last week this incapacity was remedied by changing rooms, an option not available this week. After marking all attending, I caught a train, on the train I was called to say the projector was now working.

Frustrated!