The Joker let out a laugh when you said you quit because you got tired of doing his dirtiest job. He thinks you are stupid to think you had a choice, it was obvious that your options were over the moment you started working for him.

The time when you had choices was long, long gone. Now you were nothing more than a puppet and the clown prince of crime was the one holding, pulling and manipulating your strings.

There's not going back now.

"What a good joke." The Joker says, wiping away a fake tear. "No." He says dryly, still wearing his trademark grin.