From the wikipedia entry on flatulence:
Wikipedia writes:
Historical comment on the ability to fart at will is observed as early as St. Augustine's The City of God (5th century AD). Augustine mentions men who "have such command of their bowels, that they can break wind continuously at will, so as to produce the effect of singing." The fact that mankind in general has lost this ability he attributes to the first sin of Adam and Eve and its consequences with respect to body control.
What don't they blame on the Fall?
-Meldinoor