MODERN LIVING: Watch Your Step

Like a chaperone at a high school prom, the Federal Trade Commission tapped Dancer Arthur Murray and his wife Kathryn on the shoulder last week, told them that some of their fast steps were out of line. The FTC objected particularly to the "misleading and deceptive" quizzes that it said the Murrays used to help build their $45 million-a-year business.

One often-used Murray promotion gimmick, said FTC, was to call people on the phone, give them a simple "quiz" such as: "Name two Presidents of the U.S. besides Eisenhower who were once generals."...