On the episode of the Simpson's when someone is trying to kill homer and they get sideshow bob to help, if you look carefully later in the episode when homer and bob chase Frank Grimes JR, you'll notice that he has a cape and then it falls off. Then they show homer and bob still chasing him, then when they show Grimes again, his cape is still on ,then it falls off again. I doubt that he had time to pick it up and put it back on.