Kramer
Ch- oo-... what?
George
(emerging from bathroom, buttoning his shirt) A gymnast! I can't believe it, you didn't tell me she was a gymnast.
Jerry
(watching George buttoning his shirt) What is this?
George
What, I'm puttin' my shirt back on.
Jerry
(stares at George, incredulous) 'Back on'? What was it doing off?