In In the Midst of Alarms (1894) by Robert Barr, Yates was talking to his old friend about another old friend that had caused Yates to be expelled from the academy:
But what I detested was the way the principal worked the thing. He allowed that villain Spink to turn evidence against us, and Spink stated I originated the affair, whereas I could claim no such honor. It was Spink’s own project, which I fell in with, as I did with every disreputable thing proposed. Of course the principal believed at once that I was the chief criminal. Do you happen to know if Spink has been hanged yet?”
“I believe he is a very reputable business man in Montreal, and much respected.”
“I might have suspected that. Well, you keep your eye on the respected Spink. If he doesn’t fail some day, and make a lot of money, I’m a Dutchman.
How can he "fail while making a lot of money"?
Does "might have suspected" = "perhaps I should have guessed"?