The Fathers of the Church had way too much time on their hands

"To vindicate the omnipotence of our will, Saint Augustine alleges that he knew a man who commanded his behind to produce as many farts as he wanted, and his commentator Vives goes him one better with another example of his own time, of farts arranged to suit the tone of verses pronounced to their accompaniment..." -- Michel de Montaigne, "Of The Power of The Imagination," Essays