Amy: Do I want to ask?
Leonard: Oh, when I go upstairs, Penny's gonna make me choose what we're gonna do tonight without taking her feelings into consideration, and I-I don't know if I'm up for it.
Amy: Poor baby. When I go upstairs, Sheldon's gonna give me a 25-minute lecture about what Hulk would be like if he were made of metal. Part of his ongoing series, "What If Hulk Were Made of Other Things?"