We focus on the law of unintended consequences, and how making rules often creates the opposite outcome from the desired results. The analysis starts with the Cobra effect, and then extends to a discussion of the Wells Fargo account scandal, dYdX trading farming, Divergence Ventures executing Sybil attacks, and Federal Reserve insider trading. We touch on the concepts of credit underwriting and token economies, and leave the reader with a question about rules vs. principles.