According to his biographer, 24-year-old Abraham Lincoln had to settle a financial dispute by betting a gambler he could lift a barrel of whiskey off the floor and hold it while taking a ‘drink out of the bunghole.’ If he lost, the gambler got a fur hat; if he won, the gambler got nothing. So Abe dropped to a squat, lifted the barrel to his mouth, performed a reverse keg-stand, and won the bet. Source