Sheldon: Oh, never have I ever drunk milk past its expiration date.
Amy: Never have I ever canceled a dentist appointment.
Sheldon: Oh, uh, never have I ever put my foot in the ocean.
Amy: Never have I ever honked if I liked anything.
Sheldon: Oh, uh, never have I ever thrown, caught or touched a Frisbee.
Amy: Never have I ever put salt on my food without trying it first.
Sheldon: Oh. Never have I ever pushed all the buttons in an elevator.
Amy: Well, we all have a past.