As much as the Batman comics of the modern era flaunt the fact that they are dark and gritty, there will always be something inherently silly about Batman. "Why does Batman allow brightly colored adolescents to fight crime with him?" "Why doesn't Batman just let his Justice League friends clean up Gotham?"
But by far, the most ridiculous part of the Batman mythos is Arkham Asylun allowing inmates to wear their supervillain costumes. I can't wrap my head it. My suspension of disbelief goes far, but only so far. I mean Arkham Asylum just looks the other way when Joker is seen wearing his acid spewing flower?