In the second episode of season 2—Diana's blase acceptance of her boss's request to pose as a call girl, and the culmination of her conversation with the thug sent to hurt her.
Diana: Draw, and I'll put a bullet through your shoulder. (His hand creeps towards his gun. She's faster, and she does exactly what she said she was going to do.)
Diana: Told ya. (Her FBI buddies burst in to save her, and she gives them a big affectionate grin, her stiletto on the chest of the bad guy and her gun still trained on him.)
Diana: Awww... You were worried.