I live opposite a children's playground. On the other side of it, there is a small observation tower which is no longer in use and, as far as I'm aware, unoccupied. AND YET someone is periodically opening and closing the window in the topmost part of the tower in such a manner that the sunlight flashes at me.
I'm trying to work out if it's morse code.
I FEEL LIKE I HAVE STEPPED INTO AN ENID BLYTON NOVEL.