Something I do to irritate my younger sibling is to just casually and intentionally get their age wrong, and I feel like that's something that the batfam would do to Damian. Such as:
The batfam is getting interviewed after a fight or something.
Reporter: Aren't you worried about Robin? He's a bit young to be fighting crime, isn't he?
Dick: Yeah, he may be four, but he's a tough kiddo.
Damian: I'm thirteen.
-
Damian: May I accompany you to the movies?
Dick: Aw sure, Damian!
Jason: They won't let him in.
Damian: Pardon?
Jason: It's a horror movie. You're like negative six years old. They won't let you in.
Damian: I will murder you.
-
Duke: Dude go to bed. It's way past your bedtime.
Damian: Your hypocrisy is infuriating.
Duke: There's a difference! I'm 17! You're still a growing three year old!
Damian: I'M NOT THREE!
