The saying, ‘The customer is always right’ has long lost its appeal, but that doesn't mean that it doesn't ever hold any truth to it. Employees can miscalculate, leading to big fines, expensive problems, and can generally cost companies big amounts of cash. The wheel of fortune isn't always on our side, but being human, we know it can't be. What goes up must come down, and vice versa. In any case, a company miscalculated big time, leading to the grand mistake of accidentally sending a check for…