Karl F. and Jeanne S. Wheat are married and live at 13071 Forestview Drive, Columbia, MO 65201. Karl is a self-employed insurance claims adjuster (business activity code 524290), and Jeanne is a dietitian for the local school district. 1. Karl represents several national casualty insurance companies on a contract basis. He is paid a retainer and receives additional compensation if the claims for the year exceed a specified number. As an independent contractor, he is responsible for whatever expenses he incurs. Karl works out of an office near his home. The office is located at 1202 Brentwood Avenue. He shares Suite 326 with a financial consultant, and operating expenses are divided equally between them. The suite has a common waiting room with a receptionist furnished and paid by the landlord. Karl