I sometimes see an article talking about how pro poker players can make good stock traders because they can take losses when they realize the game was tougher than they thought. They don’t try to “get even”. But that strategy does not extend to buying stocks because your losses, while similarly implying that your initial assessment was wrong, also means that the stock is cheaper and now often worth holding.
I have personally taken advantage of this acceleration in both directions. I have made people feel good by telling them that something that they were hoping would happen during our day together, would not, (eg will they meet a famous actor/poker player?) knowing that it will happen. When it does, their happiness is magnified from what it otherwise would be. On the other hand, I have been in a situation where I could get back at someone who wronged me without engaging in a sin of commission, by leading them to believe that something good was about to happen when I knew it would not. You may be too nice to engage in that second strategy. But if you ever change your mind, I guarantee it works.