I'm disabled and I've amused people with my disability....
anyway...
ON THREAD
Yes, of course you should expect to be 'entertained' by films and such like, especially if you are in a premium seat. However things do go wrong and it's wise to have a back up plan, no?
so i take on board supplies for my own amusement in case the entertainment system is defunct and I do expect other pax to do the same and not regale me with tedious muntinae of their lives.