Burning Daylight by Jack London

Back in San Francisco, Daylight quickly added to his reputation In ways it was not an enviable reputation. Men were afraid of him. He became known as a fighter, a fiend, a tiger. His play was a ripping and smashing one, and no one knew where or how his next blow would fall. The element of surprise was large. He balked on the unexpected, and, fresh from the wild North, his mind not operating in stereotyped channels, he was able in unusual degree to devise new tricks and stratagems. And once he won the advantage, he pressed it remorselessly. "As relentless as a Red Indian," was said of him, and it was said truly.

On the other hand, he was known as "square. " His word was as good as his bond, and this despite the fact that he accepted nobody's word. He always shied at propositions based on gentlemen's agreements, and a man who ventured his honor as a gentleman, in dealing with Daylight, inevitably was treated to an unpleasant time. Daylight never gave his own word unless he held the whip-hand. It was a case with the other fellow taking it or nothing.