Last summer I was vacationing in Cape Cod and we stayed at a cottage on the beach. The very first night we were there I couldnt sleep suddenly the I heard a lot of banging on the window. I woke my sister up and then we ran into are parents bedroom. My dad went outside for a smoke and i went with him to see if anyone was outside. No one was there he said it was just the shudders. But when i went back to bed i never heard it again! I still to this day dont think it was the shudders do you?