Originally Posted by
CAPTVOY
I have observed the FA doing that for years now prior to take-off/landing. Though I have yet to see a passenger do that for his/her own entertainment, lol.
I'm not so worried about passengers unlocking the lav doors, but rather locking an empty lav when nobody is looking just for the sake of pissing off other passengers who will think that some diva is taking ages with her make-up.