I see (and love) plenty of fics where Batman reveals his identity to the Justice League by Batman taking off the cowl in various situations
But why isn't there more of Bruce Wayne having to go 'fuck it' and Go Batman In Civvies?
Like Brucie Wayne is your civilian hostage doing his best big, dumb and useless impression.
Members of the Justice League come in but keep getting incapacitated/captured.
Finally a hero is about to die and Bruce Wayne just sighs heavily because apparently he has to fucking do this himself.
Several members of the Justice League just like-
"Holy shit, Bruce Wayne just bit a guy he's gonna get himself killed. Oh shit, actually he just kicked that guy's kneecap in- oh what the fuck, did he just dislocate his thumb to get out of his zipties?"
"Am I insane or are you guys also seeing Bruce Wayne wipe the floor with armed criminals? Where the fuck did he- did he just pull that batarang out of his sock???"
He rounds on them with Hal's Lantern Ring that he just pulled out of an unconscious guys pocket and brandishes it like an angry mom who just found contraband in their kids room.
Bruce, so pissed he reverts to lingo he's heard his children use: I cannot BELIEVE you barged in here and let these amateurs just...just...YOINK your ring!!
GL, sputtering: Wh- I didn't- they didn't yoink it-
Bruce: they yoinked it, Hal! Straight up yoinked it!!!
GL: How do you know my name?!
Bruce: Of course I know your name!! IM BATMAN