This usually works for mere mortals, but it still doesn't deter some of our regulars- so I'm sitting up in the booth while he's at the desk on a particularly busy night when this chick with vague back pain and allergies to every non narcotic in existence comes up to the desk for about the 15th time demanding a room and meds.
He explains to her again that we do not hand out narcotics in the waiting room and that no rooms were available, so her 5th visit this month might take a little longer. She huffs and puffs, rolls her eyes and says, "Can't you GIVE ME SOMETHING!?!" He then opens a drawer at the desk, digs around, pulls out an emesis bag and hands it to her with a totally straight face.
She didn't come back up to the desk after that.