As part of the admission procedure in a hospital, a nurse will ask the patient if they are allergic to anything. If they are, the nurse prints it on an allergy band that goes on the patient’s wrist.
Once when the nurse asked an elderly woman if she had any allergies, the woman said she couldn’t eat bananas.
Several hours later a very irate son came out to the nurses station demanding, “Who’s responsible for labeling my mother ‘Bananas’?”