Dr. Cuddy: I told you to get rid of "death cat." House: Do you see a cat? Dr. Cuddy: I see a litter box. (House grabs his cane) House: This is a disability, Dr. Cuddy. Can't make it to the men's room on time. Dr. Cuddy: You pee on the mice too? House: Well, now you see the mice actually prove that I don't have a cat. Dr. Cuddy: Are these... are these the genetically modified lab mice from oncology? House: Genetically modified for tastiness.