Bat-stories we'd never get today:

Reminder that Tony Stark's identity as Iron Man was revealed when he sprung into action to save a puppy that was about to be hit by a car:

batman turning into a baby is a bizarrely common trope in fanfiction at least

I remember there was a manga about Batman turning into a baby and the Joker deciding to raise him back into an adult who'd be Batman

just idly amused at a caped avenger of the night having a separate secret identity as a mustachioed cabbie