Au where nobody tells 10 year old Damian who Jason is. And the way they talk about him, Damian just assumes Jason is like a raccoon or something.
Damian: Grayson, why does Pennyworth leave food on the counter every night?
Dick, on his phone, not even paying attention: Oh, that's for Jason.
Dick: Yeah. Sometimes he sneaks into the kitchen at night, so Alfred started leaving food out for him.
Damian, confused: I've never seen anyone here.
Dick: Well he doesn't always come. And last time, Bruce caught him crawling through the window and scared him away so, who knows when he'll show up again.
Damian, definitely thinking of a raccoon: So then Pennyworth is feeding a random stray that crawled out of God knows where?
Dick, annoyed: He's not a 'random stray', Damian, he's family, and he has been living in this house for way longer than you have.
Damian, trying to remember how long do raccoons live for:
Damian: I hope he doesn't die soon.
*Later that night in the Bat-cave*
Tim, typing away in the computer:
Damian: Drake. Have you ever met Jason?
Tim: Uh. Stupid, annoying and looks like a skunk? Yes, why?
Damian, picturing a mix between a racoon and a skunk:
Tim: Well, the first time I met him, he attacked me, so...
Damian: Hmm... What did you do to provoke him?
Tim: What did I do to– Bitch–
Tim: Nothing! He just didn't like me taking 'what was his', or something.
Damian, nodding: You invaded his territory.
Damian: Father, when do you think Jason will visit again? I want to meet him.
Bruce: Um. I don't know, Damian. He doesn't come here often.
Bruce: Because he lives somewhere else.
Damian: Why doesn't he just live here with us instead? He would be safer.
Bruce, wincing: I don't think he would like that, Damian. He's not confortable here.
Damian: But, maybe if I befriend him I could convince him to stay.
Bruce, sighing: I don't thinks so, Damian. You have have to respect his wishes.
Damian: I hope he doesn't get rabies