Robin: "In every male-female friendship there's a total number of drinks and if you hit that it means you would definitely have sex. So how many drinks would it take to get you wasted?"
Alice: "Two and a half, but maybe three if I've eaten."
Robin: "Okay, and Tom's is eight. So you can't hit eleven drinks between the two of you. Not one for you, ten for him. Not six for him, five for you."
Alice: "If I had more than five drinks I'd hook up with you."
Robin: "My drink number is twenty-seven."
Alice: "What?"
Robin: "I wouldn't even touch myself on less than twenty-four."