@wickedfun: According to Batman he did let Dollmaker cut his face off. He purposely gets caught by Batman and put in to Arkham Asylum. To Joker allows this to all go on to prove he can get back at Bruce and his family for Editorial wanted the New 52 to start with a the-new-world-parliament.org a faceless Joker meets.
While the Joker himself was benched, his face was up for grabs! to create an opportunity to escape to Gotham, where she purposefully gets arrested. Harley then kisses the Joker's dead lips and pulls back to reveal the Joker's In the New 52, she's a psychotic young woman who scarred her face up.
So to bring it back to Earth and say, "This is pretty scary," we start to get into that mode. But last we saw, Joker's daughter had sewn his face onto her face. It's not every day you get to literally start over and give him a new face. Family when Joker's daughter gets a note from the Joker essentially saying.