#Damian CAN'T leave. these idiots would die without him. it is a good thing he is so responsible.

[magicpiano]

I sort of like the idea of Bruce accidentally adopting Damian. Something happened which caused Damian to run away from the league and towards his father, but all he knows is that is father is batman. Before he can ever find him though, he is taken in by Bruce Wayne.

Damian intended to just slip away the first chance he gets, but somehow his escape plans keep getting interrupted. Eventually he begins to like living with the Waynes so much he starts to consider simply not looking for batman. After all, his father never came for him before. And what proof does he have that batman is so great anyways? He might as well stay with the people who actually like having him around.

Damian assigns himself as the Wayne family's protector because these weak foolish people could certainly never defend themselves. After the third foiled kidnapping attempt Damian is sure he could never leave. They would all die without him. Frankly he is amazed the Wayne's behavior hasn't gotten them all killed yet.