
After Joan and Max had been married for 25 years, Max became disinterested
in sex, and his libido began to wan dramatically.  In desperation, Joan
hauled him to a marriage couselor, who listened patiently to Joan's complaints
and Max's protestations.  Max claimed that he was being nagged unmercifully
to fulfill Joan's needs, and that after awhile every marriage tended to
become less physical.  Joan said that that wasn't true and that she had
needs and desires that he, as her husband, was expected to fulfill.  Finally,
the counselor issued the verdict. "Max," he said, "Everybody has to give a
little for a marriage to work.  From now on, no matter how you feel at the
time, you must give Joan her conjugal rights at least semi-annually.  And,
remember, do it in a loving, considerate manner; after all, you and your
wife are a partnership of love."  Joan was delighted, and floated out of the
counselor's offices.  On the way downstairs, she nudged Max.

"So, honey, tell me... how many times a week is semi-annually?"
