Carousel of Progress. We had to watch the same segment over and over.

It was a bit eerie.There were only about 10 people in our section.The CM kept breaking in with a message to not leave your seat and to not try exit. After about 10 minutes, we started to wonder if there was an apocalypse going on outside. Why else would they keep us trapped when the exit doors were so close and tempting?

About 5 minutes later, we started to move and were allowed to exit. And world was fine. No zombie apocalypse or alien attack .
The only lasting effect was that I couldn't get the son out of my head for days.