We’ve already noted that author Eric Tyson believes Jim Cramer’s stock advice is worse than a coin toss. Now Tyson takes on the advice of “Rich Dad, Poor Dad” author Robert Kiyosaki. In summary, Tyson berates Kiyosaki’s disdain for mutual funds and refutes many of the arguments Kiyosaki uses to favor real estate over them. Tyson also points to a larger review of Kiyosaki’s teachings that is, shall we say, less than complimentary.