Perfect Explanation

I got a great big bear hug from Luke this evening. He'd had a "trying" day and it was the first hug he had given me. I said to him, "Wow - that's a great hug. Why is that the first one I had today??"
He grimaced and said, "Because... I did not take nap at school today!"

His usual answer to any question is "because because" said in his own cute little way so this was a lot of information for him!