Imagine, someday, the Joker actually finding out a) that Batman is Bruce Wayne and b) that he’s spent their entire shared career being completely and utterly trolled by this stoic asshole in a bat suit and by that utterly hapless billionaire, and then Bruce-the-Batman leans in and whispers, “The butts match. The facts don’t lie,” and Jokes can only stare at him in complete and utter awe because Bruce Wayne as the Batman he can sort of wrap his brain around but Bruce Wayne and the Batman are that ridiculously wrong conspiracy theorist TOO, and he’s RIGHT?!!!
It’s the best and biggest bluecreen of the Joker’s life, and somehow, he’s never been happier.