The only reason you and Selina are working together right now is because you both owe Bruce. He needed someone to take down a villain; somehow, all eight billion of his kids were busy, so naturally, he makes you two do it instead.

You and Selina manage to take down the villain quickly. Now, you have your weapon pointed at their head, ready to kill.

"No, no, no," Selina says, wagging her finger in front of your face and taking your weapon. "No killsies, remember? Batsy doesn't like homicide."