Its sad if you think about it all the joker wanted was a friend getting batman to attend but instead he took it as crime so the joker took some time behind bars then mr j started wars breaking down doors getting the love of his life out of where he was before but then he hit rock bottom hitting that floor a little to hard making him crazy cutting his mouth even wider so. he could smile even bigger on the outside he was fine but the inner him was die in. thats the story of joker