(( It's 3 in the morning when you, a young kid, hear something outside your window.))

A fairy bangs on your window, which sounds like finger taps due to her size. But the fact that it even sounds like a finger tap is strange. She's no bigger than a few inches, she shouldn't be able to bang the window that hard. — Hey, kid! Let me in, I'm a fairy. You believe in fairies, don't you? Let me in and I'll show you my magic!