system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Has Batman or Superman ever just completely fucked up?

Maybe nobody dies but B/S gets their ass kicked, the bad guy gets away with the big painting or the mayor's Arkham passcode or whatever, and there isn't some quick follow up where Alfred/Lois gives a pep talk and second time around they get it right or Batgirl swoops in to give a helping hand and fix things. Has something like that ever happened?
gpt
Batman’s biggest one has got to be letting his plans to neutralize the JLA fall into enemy hands.

For those unfamiliar, Batman (being, y’know, the goddamn Batman) had secret plans to take down the individual members of the Justice League should they ever go rogue and pose a threat to Earth.  These were non-lethal plans, mind you.  One of his rogues gallery not only found the plans, and not only modified them for lethal purposes, but unleashed them all at once.  It was only because Batman knew of the plans at all - having designed them in the first place - that the League survived.

Pretty sure they’re still sore about it.