That brought back a memory of what I used to do when we went on holiday as a child to france, if there was rain on the windscreen I would focus on one drop, on specific one, and I would use that drop to bounce on top of houses, and go around lampost outlines, by moving my head as it moves tjhe perspective of the rain drop. In fact I did it a few months ago and my mum thought I was a right weirdo. Just told her I was stretching my neck to hide my shameful game.