Never bet on a loser because you think his luck is about to change.
Never buy from a rich salesman.
Never do anything you wouldn't be caught dead doing.
Never do card tricks for the group you play poker with.
Never eat prunes when you are famished.
Never get so busy making a living that you forget to make a life.
Never go to a doctor whose office plants have died.
Never insult an alligator until after you have crossed the river.
Never invest in anything that eats.
Never kick a man unless he's down.