Full Metal Panic!

“Yes I've used a condom before. They can store up to 1 liter of water.”

“[pulls a gun on a boy harassing Kaname] I'll let you go this time but if I see you doing this again, I'll come after you and all your relatives.”

“[to a dating simulation that has just dumped him] Wait! If you cut off negotiations, it can only lead to war. Accept a truce, and I will listen to whatever you have to say. Let's work toward a compromise!”

“I don't have any regrets. I'm glad I met you, Sousuke Sagara.”

“I'm not a nerd, I'm a specialist.”