Tax law changes with supporting anecdotes or cases sited where they are almost unbelievable and yet true.
"Did you see this juicy bit of tax porn? HIE Holdings, Inc. v. Comm. TCM 2009-130? The dude tried to hide money from his wife by setting up a shell company with his mistress where she billed out $20K a month for fake coffee beans and pretended to buy arcade games! For $20,000 a month he should have bought some of the arcade games."