i once invited in some jehova's, offered them a drink and some food
they were confused, but politely accepted
then i rummaged in the kitchen,
came out with a bottle of scotch and 3 glasses
poored 3 glasses , stuffed each a glass in their hands
stood up , and toasted on the sanctity of the Scotch, shotgunned the glas and apologized for the food, told em it would be another 15 minutes for the roast beef to be ready ...
then i broke down in a laughin stupor...
by the time i came out of it , they were gone
they must have a black list or something, i never, ever saw any of them again... works like a charm