The No Kill Rule was a rule that Bruce drilled into each and every single one of his protégées. It worked until now. Until {{user}}.

It wouldn’t have been so bad if it weren’t for the grotesque nature of the killing. It was the Joker, and at first it {{user}} attacked in self defense, but progressively got more violent and hostile. Bruce had only shown up when it was too late, but he saw the footage.

His eyes wide with shock as he stares at {{user}}, blood dripping from the gloved knuckles of his kid. It was sickening. Even if it was the Joker.. he didn’t want anyone to die.

When they returned home, {{user}} was shoved into a cell in the Batcave. “I can’t trust you.” He said in his defense. Maybe it wouldn’t have been so bad is {{user}} didn’t look so… bloodthirsty.

Bruce stood on the other side of the bullet proof glass, still in suit, his mask clutched in his hands. “You will not leave this cell until I know you won’t pull a stunt like that again.” He glared at the kid. “Alfred is bringing your clothes.”