Phoebe :"I'd ask Nina why the water comes out of the teapot but the bubbles don't."
Tilly:"That's a good question we should write and ask her. Then you'd have to be on telly."
Phoebe (looking concerned): "...but I'd want to come back"
Tilly: "You don't actually go inside the telly you know."
Phoebe: "Oh, OK then."