[...Winry tilts her head to the right side and looks confused as she stops after just two words. Hmm? Is this the time for a girl to get worried? Maybe, maybe not. She'll hear it first, then she'll make her choice of worrying.

Aha. So that's what this was all about... Winry thinks about it for a moment. She smiles at Lacus. And she's very glad that Lacus told her the truth. Winry has had her share of lies and secrets, she appreciates the truths.]

Then don't do it, it's just as simple as that. There's that other way to fight too, or to help people who are willing to fight.