We use a single example to explain (1), the Likelihood Principle, (2) Bayesian statistics, and (3) why classical statistics cannot be used to compare hypotheses. 1. The Slater School The example and quotes used in this paper come from Annals of Radiation: The Cancer at Slater School by Paul Brodeur in The New Yorker of Dec. 7, 1992. We use the example only to make a point, not a serious analysi...