"Who's been eating my porridge?" - Adrien, bringer of joy (the digital tech) : commenting on how every night when you come back to your room at the Mandarin Oriental Miami the TV is on, your stuff is moved around and the lights are all on.
"You look fantastic! Have you been drinking your own urine?" - Erin : my favorite production assistant.
Explanation: The model on a previous photo shoot announced to everyone on set that she drank her own urine every morning. We have reincarnated this joke in so many ways, but this is by far my favorite!