While preparing a tax return for a gentleman named Tafoya, he surprised you when he told you that he is a "Paid Assassin" and that you should, accordingly, enter the phrase on the "Type of Business" line on his schedule of proprietorship income. When you asked him if he was joking, he told you that he was being sincere. He further told you that, during the prior year, he had earned income from shooting a foreign spy in the eye with a .22 caliber gun, had firebombed a home in Canada, and had procured a poison serum that was capable of "killing a 200-pound animal." You have no reason to doubt that your client is fully reporting his income and being entirely truthful. Are you willing to prepare his tax return? (Klein, 2016, p. 154)