Of course, this example is somewhat muddied by the established and predictable pattern.
- Batman refuses to reveal his identity. Joker kills people.
- Batman reveals his identity. Joker kills people.
- Batman patrols Gotham City even more thoroughly than usual searching for the Joker. Joker kills people.
- Batman runs off to the ass end of nowhere searching for Ra’s al Ghul or somebody. Joker kills people.
- Batman adds nipples to his Batsuit. Joker kills people.
- etc