Back in high school, way before the Internet and streaming became a thing, one of my professors was a huge fan of Ray Charles. Once it happened that he had planned a concert in a city nearby and, being us so to say, “in the remote outskirt of the Empire”, it was a very rare occasion to see him live.
The professor, of course, managed to get tickets months in advance, and when he got them, he gloated with the class about it.
The day after the concert, he had a lesson with my class, and as soon as he stepped in, we asked him how the concert was. Upon hearing our question, he went pale and babbled, “the what?!”
“Ray Charles concert? Yesterday? The tickets you bought months ago?”
He frantically looked at his wristwatch, then at the calendar, then slammed his fist against the wall and let out a string of words that were not exactly suited for a room dedicated to learning.
It turns out he had forgotten about the concert and missed it.