This event was observed completely by chance. One morning as I was working, I saw this image flickering on the wall behind my computer. I turned my back to see that the cable my upstairs neighbour still has not tied somewhere was flailing in the wind, dipping in and out of the sun hitting my window, and my window handle (which looks like the front half of a bug in this video) - the wind moving the cable caused it to flicker the sunlight, causing this animation event.