Warlock - pg. 143

Buck Slavin entered and approached him, with a hand out and his jaw shot out grimly; he was one of the second kind. "Morgan," Slavin said. "This town ought to thank you and the marshal. I thank you."
He shook the proffered hand, without rising. "I thank you for thanking me, Buck. But it was nothing."
"That was fine shooting."
"I was lucky, Buck." he said, solemnly, and shot his jaw out too.