A surgeon was retiring from his long and rewarding career as a specialist in
circumcision. Throughout his career, he had saved the foreskins of his patients
in specimen jars as momentous, and now wished to fashion them into a
souvenir.
So he brought his hundreds of specimens to a leathersmith, and asked him to
craft an article of fine artistic quality. "I'll see what I can do," said the
artisan, "Check back with me in one week."
The surgeon returned one week later, eager to see what magnificent article
the leathersmith had made for him. But the leathersmith presented to him only a
wallet. "All those foreskins and you make for me only a wallet? " exclaimed the
surgeon.
The leathersmith replied, "Yes, but if you stroke it, it becomes a
briefcase."