He came into the clinic claiming that he thought he had chronic fatigue syndrome or fibromyalgia because he was tired a lot more than usual. House realized that he was just a hypochondriac so he decided to give him placebo treatment. He went to the pharmacy and got some Vicodin, then he emptied the bottle got change for a dollar and went to the candy machine and got a bunch of mints. He put the mints in the Vicodin bottle and gave them to the clinic patient. Later on in the episode, he came back looking for a refill.