The best truffle each year has been given to a noted personality. When it was given to Harry Truman, he didn't know what it was. Because of its strong odor, the White House thought it was spoiled and tossed it. Our sister city is Alba, Italy, famous for its white truffles. One year, when my father was mayor, he received the Truffle of the Year. The local postmaster, who was also on the city council, made the same mistake.
Here's the story in English:
http://www.france24.com/en/20121110-obama-get-reelection-gift-weighing-more-kilo