I have gotten strange gifts before. Roses on my kitchen windowsill. A can of soup inside my screen door when I was sick. During the blizzard in January I ran out in the middle of the night to close my storm windows. Backlit by my tiny lamp inside I saw that someone had written on my window with their fingertip
I ♥ A.K..
It is still there, invisible till the light catches the oil streaks. I have no idea who wrote it or when.