A doctor used to visit the same bar everyday and he ordered the same drink day in and day out. He would tell the bartender, “Fix me an almond Daiquiri, Dick!” And Dick, the bartender, would serve it up.
This went on for years on end. Finally one day, the bartender realized that there were no more almonds anywhere in his inventory. The doctor had just walked in and was waiting anxiously at the bar for his favorite drink. In a hurry, the bartender figured that he could substitute a hickory nut, crush it up and the doctor would never know the difference.
The doctor took a sip of the drink and said, “Is this an almond Daiquiri, Dick?”
The bartender replied, “Well, no, it’s a hickory Daiquiri, Doc!”