The anecdotes about patients for the most part ring true; most of us have worked with similar cases. One that seems a bit far-fetched, however, is the traveling salesman with Tourette’s syndrome who had urges to do dangerous things while driving on the highway at high speed, such as throw the shift lever from drive into reverse. When the urge struck, he pulled his car safely out of traffic and then gave in to the urge, jolting the car to a stop and ruining the gearbox. "Oh, yes," the patient said, as a key precaution, "I only drive rental cars." Not for long, if that’s how he treats them, and certainly no less expensive than ruining one of his own.