When the Batboys realized that it wasn’t wise to leave their youngest brother with a house guest…

Damian: We left plenty of food so you won’t starve.

Conner: Thank you.

Damian: I was talking to the cat!

When Batman grounds you for all the shenanigans you pulled with your super best friend…

Damian: You can’t keep Jon and me apart! I’ll… I’ll disobey!

Bruce: I’m also Jason Todd’s father. Do you think you’ve got any tricks I haven’t seen?

Bruce: *leaves room*

Damian: *climbs out of a third story window, slides down a tree, and lands in a wheelbarrow being pushed by Bruce*

Bruce: Hn. Jason Todd: Age 14.

Bruce: *drags Damian back into the Manor by the scruff of his Robin uniform*

Jason: *comes out of a hidden door in the tree*

Jason: Jason Todd: Age 19. Mwahahahaha!

And the “Big Brother of the Year” Award goes to…

Jason: *reading the newspaper*

Damian: *slams his suitcase on the kitchen counter*

Damian [about Gotham Academy]: I can’t believe I have to start another year at school. I never learned anything at that suck shack.

Jason: Hey! Who taught you language like that?

Damian: A kid at school.

Jason: So you did learn something.

When you humor your 13-year-old League of Assassins-raised brother at his second chance at childhood…

Damian: *pretends to pour tea for Alfred the Cat, Batcow, Jerry the Turkey, Goliath, and Jason*

Jason: *facepalms* I don’t know why I agreed to this.

Damian: *glares* Because you like the taste of my imaginary tea.

Jason: Oh, you’re right. *“sips”*

After watching a Batfamily home video clip of a half-asleep, coffee stain-covered Tim tumbling down the Manor stairs…

Damian: *smirks* They’re going to eat this up at Show and Tell.

Dick: Dames, I’m not sure if I’m comfortable with the idea of your classmates laughing at our family’s private moments. How would you like it if, twenty years from now, people were laughing at things you did?

Damian: Not likely. Come on, have a sense of humor about yourself, Grayson.

Damian: *watches a clip of himself on the toilet angrily yelling “I’m a big boy, Todd!” while Jason runs away howling in laughter behind a shaky camera*

Damian: -Tt- I gotta find something else quick.

At the Titans Tower…

Robin [about the rest of the Teen Titans]: *muttering angrily* I’ll show them who’s “just a kid”!

Nightwing: *yelling from the room across the hall* Damian, bedtime! I laid out your jammy-jams!