Ina

They all assume that he already knows, because he always gets called The Son of The Bat, but Damian ends up thinking he's Jason's son. Why? Because Jason is the only other one around the league who has a bat print on their shirt.

Who always keeps wanting to have custody battles with Talia? Jason. Who guards him around? Jason. Who is literally always around, except for Talia? Jason.

When he does end up needing to go to Gotham, Damian probably just assumes he needs to go to his other, slightly better (Jason's words), grandfather for training just like with Ra's. Jason did, somehow, along the way feed into this, making jokes that he doesn't know Damian actually believed.

So obviously, when Jason leaves him on the porch Pre Red Hood identity reveal, the first thing that comes out of Damian's mouth when he first met Bruce was:

Damian: I am the Red Hood's son.

Bruce:

Dick:

Dick: Okay, so I wasn't expecting that..

Damian: I was sent by my mother, Talia Al Ghul to train under you.

Dick: Huh. Okay, so I did expect that. Slightly.

They only test Damian for Talia's blood, and bada bing bada boom, he's hers. Bruce tries to call up Talia for this, and she only laughs on the other line. They do still keep Damian around, reluctantly training him for Robin. Dick was only glad Talia had moved on her "beloved".

Later, after Jason's identity reveal, Bruce revels in being a grandfather only for him to look confused and go:

Jason: What do you mean you're a grandfather? No offense, but Dickie doesn't seem like the type to have kids. Same with Tim. Doesn't seem like a Teen dad to me.

Bruce, slightly concerned: What about Damian?

Jason: What about him?

Dick: Isn't he your son?

Jason: ..No? He's Bruce's. Why would you think I sent him- Oh.

Jason: I said young man, my father took me to town.

Damian: Are you trying to combine the Y.M.C.A. song with My Chemical Romance's The Black Parade? Because that does NOT work. It's like trying to put Skittles and M&Ms in the same bowl. The flavors are wrong together.

Robin!Dick: Okay, but it’s a little stilted. "I am feeling trepidation at the prospect of a parentless existence?" No kid talks like that.

<<Part 9: Barbara 

[Masterlist]

Alfred: Actually, I have prepared something I would like you all to see.

Bruce: Oh lord…

[collective sigh]

Alfred: I have noticed that many of you are electing not to return used dishes to their proper location to be washed. 

Whenever someone asks Peter how he took a picture he's like "Oh! I uh-, climmed a flagpole. Totally"

And very mortal, normal-human Jimmy is like "See, Clark, is not that weird"

I mean, look at this nutjob.

The world could be ending, lava on the streets and Jimmy would be out there photographing away. No powers, no sense of self preservation. Just khakis, a camera and a dream.

I like to imagine Peter meeting Jimmy and immediately being mortified about it.

Jimmy: –and so luckily I was able to take the picture before the building collapsed on me... Superman was super pissed at me but, photographer to photographer, it was totally worth it.