My dad was babysitting my two children, so I called him later to ask how it was going.
Me: "What did they have for dinner?"
Dad: "Which one? Charlie or Clark?"
Me: "Charlie"
Dad: "Spaghetti"
Me: "What about Clark?"
Dad: "Spaghetti"
Me: "Ok ... So what time did they go to bed?"
Dad: "Which one? Charlie or Clark?"
Me: "Charlie"
Dad: "7:30"
Me: "And Clark dad?"
Dad: "Also 7:30"
Me: "If the answers are the same, why are you telling me them separately?"
Dad: "Well, I was the one looking after Charlie".
Me: "oh, who was looking after Clark then?"
Dad: "Me".