We begin well, sir, the fat man purred … "I distrust a man that says when. If he's got to be careful not to drink too much it's because he's not to b… - Dashiell Hammett

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We begin well, sir, the fat man purred … "I distrust a man that says when. If he's got to be careful not to drink too much it's because he's not to be trusted when he does. … Well, sir, here's to plain speaking and clear understanding. … You're a close-mouthed man?"
Spade shook his head. "I like to talk."
"Better and better!" the fat man exclaimed. "I distrust a close-mouthed man. He generally picks the wrong time to talk and says the wrong things. Talking's something you can't do judiciously unless you keep in practice.