Describe Theroux's behavior toward the doctor he traveled with on the Trans-Siberian Express.

When he discovered his traveling companion had just completed his medical internship, Theroux immediately launched into a joking diatribe about the greed of medical doctors. Specifically, he accused doctors of charging exorbitant fees for minor problems and bragging about selling their blood as students. When the doctor and his wife stood up to leave and avoid further abuse, Theroux realized he (Theroux) was drunk.