I can't remember what airline it was, but the last time I flew we got:
"should this flight become a cruise, your seat cushions are flotation devices"
"In the event of a sudden change in cabin pressure, oxygen masks will drop down in front of you. Immediately stop screaming and place the mask over your nose and mouth."
"phew! we made it!" [upon landing]
"Please do not leave any personal belongings on board, unless they are valuable or can be split three ways"

There were lots more that I don't remember. It definitely made the flight less scary for me.