When you watch movies, have you ever had the experience of sleeping off when you are watching one. How did you react when you woke up afterwards from the sleep?
Guilty! You can't blame me though, after having a stressful day I used to think that I'll be able to pull off about an hour of a movie, only for me to sleep off halfway into it!
Sleeping off during movies has happened to me multiple times. I can't even remember how many times it has happened. It's a good power nap for me in most cases.