BONDSMAN, n. A fool who, having property of his own, undertakes to
become responsible for that entrusted to another to a third.
Philippe of Orleans wishing to appoint one of his favorites, a
dissolute nobleman, to a high office, asked him what security he would
be able to give. "I need no bondsmen," he replied, "for I can give
you my word of honor." "And pray what may be the value of that?"
inquired the amused Regent. "Monsieur, it is worth its weight in
gold."
-- Ambrose Bierce, "The Devil's Dictionary"