House, Season 4

Dr. House:
Imagine that the roof of the storage closet collapses on your favorite floor buffer, which then starts overheating.

Janitor:
Why would I have a favorite floor buffer? [House looks at him] Okay... maybe the electrical works got banged up in there from stuff falling on it.

Dr. House:
Hmm, interesting. Brain damage leading to hypothalamic disregulation. Nah, if you're brought in covered with rubble it's all about the MRI's, we would've seen that. C'mon! Gotta earn that fiver.

Janitor:
Or stuff [points to his bottle of cleaning fluid] leaked in the holes, messin' it up.

Dr. House:
Lacerations lead to multiple portals for infection. Bacterial would've responded to the antibiotics, [indicates "fever" written on the white board] it's too high for viral. Parasites or fungus is possible.

Janitor:
Or maybe lupus. [House stops writing and stares at the guy] My grandma has lupus.

Dr. House:
Okay, autoimmune. I'll run a lupus panel. Infection fits best. [picks up his cane from the board] A complete history would be helpful, which leads to the worst part of the job: dealing with the floor buffer's family.