One of my favourite tropes is when the Justice League doesn't know that Batman has kids—or that all the Gotham vigilantes are actually just one, big brood of the Bat's.
Imagine the JL sitting down at the Watchtower, debriefing their latest mission. It's late, everyone's tired, and they just want to get this over with.
Then one of them noticed the Bat seemingly antsy, looking back and forth in his tablet instead of listening to Superman's report—he's not even doing anything with the tab.
Green Lantern (Hal) : "Yo, Spooky. What's got your panties in a twist?"
Of course the annoying space cop notices it first—also, how did he know he's wearing panties?
....J'onn's gonna pretend he didn't hear Batman's thoughts—he didn't mean it. He swears he didn't. Sometimes his powers are just hard to control, okay? But also what colour ar—
Anyway, Batman's grunting—now that someone's noticed his antsy behaviour, he doesn't feel like hiding it anymore.
Batman: "Can we please hurry this along?"
Oh great, his knee's bouncing.
Superman: "B, are you okay?"
Of course he's okay, Superman! Just get on with the report!
When Batman checks the time on his tablet once more, his sweat runs cold.
Batman, whispering: "They're coming."
Wonder Woman, on alert: "Who's coming?"
There's a green glove that seemingly emerges from the Bat's cape, and he's suddenly on Batman's lap, face buried in the man's kevlar armour.
It seems that not even Batman knew he was there.
Red Robin: "Damnit! The brat beat me to it- move over!"
Where the hell did Red Robin come from? Actually, why is he here-
Oh.... He's... Hugging Batman?
Nightwing: "Dang, ya'll beat me here?"
Nightwing's cartwheeling his way over to Batman, landing on the backrest of the chair and sitting on top of said backrest to hug Batman's head.
Wait, how do these vigilantes keep on coming here?! And why the hell are they so close to Batman??
The Signal: "Dang, looks like we're late."
WHO THE HELL IS THIS GUY?!
The Spoiler: "Nu-uh! The fridge ain't here yet!"
Also- who the FUCK is the fridge???
They quickly joined the rest and now they all look like a ball of bats, all bundled up together.
Green Arrow: "Am I the only one who thinks this is weird? I'm not, right?"
Admittedly, the Justice League is still relatively new—and it seems that they're finally learning something new about their illusive Bat.... No matter how weird it is...?
Flash: "Is this why you always leave so early?"
Wow, such an astute observation, Flash.
Red Hood: "Mommy'O! I'm hoomeeee!"
Oh, so the infamous Red Hood is part of... Whatever this is, too- wait, RED HOOD?!
Somehow, the Red Hood has managed to fit himself into the bundle of birds and bats. Honestly, they're surprised Batman's chair hasn't broken down yet from the sheer weight of all of those people.
Wonder Woman: "Are... Are you okay there, Batman?"
Batman, underneath all his brood: "Hrn."
Batman, looking down at his legs: "Hm."
Batgirl, hugging his knees under the table: "Hn."
Green Lantern, startling out of his chair: "WHAT THE-"