A doctor gets off duty from the hospital everyday at 5 P.M. and proceeds to the bar across the street where Dick, the bartender, has an almond daiquiri waiting for him at 5:10 every evening without fail. Well, on one particular evening Dick finds he's out of almonds and panic sets in as all he can find are hickory nuts. So he throws a handful of them in the blender and whips up the doctor's cocktail and places on the bar just as he sits on the stool. The doctor takes a sip and says "That's not an almond daiquiri, Dick." And Dick replies "You're right, it's a hickory daiquiri, Doc."