So you're of the opinion that I should teach him to be more efficient at it?

[You know him, Clark. He's naturally suspicious about everything and everyone.

Even Superman. Sometimes.]

We have seen war first-hand, Clark. We've both fought and bled and damn well died for our countries, our planets. Why should anyone else get a free pass to kill simply because of what they've seen? People are defined by the choices they make. Period. I won't say that the Second World War wasn't hell on Earth for those boys, but he isn't there now. He has a chance to change, and he isn't going to take it.

[... Bruce just. Presses a hand against his forehead and manages not to project complete irritation in Clark's general direction.

Because honestly, he's more angry at himself. For taking a chance and reaching out to someone against his better judgement and being proven wrong.]