I'm SLF. On a european flight some years ago the crew embelished the safety drill somewhat with things like... "in the event of an emergency, such as running out of Martini an Oxygen mask, in a fetching yellow colour..." and "....pull down on the natty little red toggle...." etc..
Anyway by the end about a dozen of us were laughing our heads off but the rest of the flight simply hadn't noticed anything out of the ordinary going on.