That's what you do after the person leaves! "Hey, did you see that big purple vibrator!" :D
I wonder if she has to wait to use it until the pilot let's people know that it's okay to use electronic devices on board.
Exactly. We all do it, I freely admit to making all manner of insulting, funny, obnoxious, etc., remarks to my husband about the person AFTER we have left that person's presence.