"I need to find Slim," you say to the young woman.
"I know what he did to you," she says, "and I reckon I know why you're here..." She pauses; she has the words but can't go on. Finally, she blurts out, "Please don't kill my husband!"
You could tell her the truth, that you're whole existence now revolves around murdering the man who tried to murder you, who set you up and ruined your life. You could do that, but...could you really? "I won't kill him," you say, "but there's something between us that ain't goin' away."
She nods and says, "I understand," then moves out of the way. "He's in the kitchen." You never imagined it would be that easy, but she leads you down the hall, and there he is, rat bastard himself with his back to you and your hand on your gun.