It's just a matter of success and failure; once it fails, you won't finance again. But if the person is winning, that would help you earn consistent profit, provided he sticks with the same setup.
That's how a gambler should think. It shouldn't complicate things. We're all in this to expect two possible outcomes: either we lose or we win. Similarly, when trusting a person, it's akin to a gamble with agreed-upon terms. If they succeed, we win; if they fail, we lose. It's that simple, right?
Gambling means that we lose more than we win, but we decide to gamble. Most gamblers, when asked, say they have lost more than they have won. When asked why they don't give up gambling after hearing from them that the losses outweigh the gains, they say they are waiting for better odds. If a gambler were to quit gambling after losing money, their gambling losses would not exceed their gambling gains. Gambling is hard to quit when you start gambling, a gambler gets more motivated when he gambles and when he loses by gambling he wants to recover that loss whether you win or lose gambling definitely pulls you to gamble. Gambling must be done with our conscience and never with emotions.