In Year 4, we were told we were going to have a treat one afternoon, lots of secrecy, lots of build up... and the treat was to watch Toy Story 2. I wasn't (still aren't) a big film watcher anyway, and my brother was obsessed with Toy Story 2 at that time, and I'd already seen it twice that week!
So I asked my teacher if I could bring a book to read, sat near the door where there was a little bit of light. She said no. I sat through half an hour of the film... and then went and got my book. My teacher caught me, and made me lose 5 minutes of golden time the next day.
When we lost golden time, we had to go and sit in the hall for however many minutes we were missing, and then we could go back to our classroom for the rest of our golden time. I sat there for my five minutes... and then another five minutes, because they forgot about me!
I know I technically shouldn't've gone and got the book when the teacher said no, but to this day it still feels injust - why couldn't I read a book; it wasn't hurting anyone! Also, I think my main issue was the film being presented as a treat - it definitely wasn't a treat for me!
I now work in a school, and whenever a film is shown as a "treat" I always campaign for other options for the children for whom films are not treats - even if it's just being allowed to bring a book or some colouring into the film.