Sheldon: So, how was your day?
Penny: Are you trying to make small talk? Oh, sweetie, you really don't have to.
Sheldon: No, it's the accepted convention. How was your day?
Penny: Well, uh, they shifted my schedule around at the restaurant so my hours are going to be a little different...
Sheldon: I'm sorry, that's not going to interest me at all, just eat.