Quotes: If You Ever Do Anything to Hurt Her...

Mrs. Possible: We want Kim to be happy.
Ron: We do...
Mr. Possible: If not, it's a one-way ticket on a deep-space probe.
Ron: *gulp* How...deep?
Mr. Possible: Black hole deep... Ronald.

Bruce: What do you want, fucker? Oh, you want something, huh?
[Henry pistol whips Bruce ten times]
Henry: I swear on my fucking mother, if you touch her again, you're dead!
[pistol whips one last time]
Henry Hill, Goodfellas

Katara: You might have everyone else here buying your "transformation", but you and I both know you've struggled with doing the right thing in the past. So let me tell you something right now. You make one step backward, one slip up, give me one reason to think you might hurt Aang and you won't have to worry about your destiny anymore. Because I'll make sure your destiny ends, right then and there. Permanently.

Bruce: She's all yours now, if you can handle her. But you'd better be good to her, 'cause I know where you live.

Teddy: You want to sneak off to Latveria without us? Please do. The less my friends and I have to do with you-or your father-or Doctor Doom-the better. But if you somehow manage to convince my idiot boyfriend to go with you...I will rip your legs off! Do we understand each other, Pietro?

I won’t waste elaborate verbal flourishes. Let me pay you the compliment of being very plain: Lilith has shown a terrible lapse in judgement. It will be dealt with... but she is my wife and off limits to you. I want to be inescapably clear: if you harm her, I will destroy you. There is more than one way to destroy something, whole unknown dimensions of oblivion in varying bites: I know them all. If you continue, the person who walked into this building today will no longer exist, and your secret society will come to regret it. I will not hesitate. I will not twirl my moustache. I do not make idle threats.
Samael, The Secret World

"Congratulations, I guess, Hikari. Stooge, you ever make her cry and I'll throw you into the ocean from here with Red Whirlwind."
Asuka Langley Sohryu, A Crown Of Stars

Kaji:"She's like my daughter, boy. I expect you to watch out for her, and be a gentleman. If you don't, if there's way out there to hurt you, I'll find it."
Shinji:"I would never hurt her."
Last Child of Krypton, chapter 3