Professor Dan Petory's Blues is an animated short produced by Studio 4°C and directed by Hidekazu Ohara. It appeared on the Grasshoppa 1 DVD, and it is a strange and not altogether coherent academic lesson about UFOs. It features hand puppets, aliens and a man who hates mediocre middle-aged women. As with most 4°C shorts, this is probably not everyone's cup of tea.