I put my gold in the safe of my best friend, he has a good safe. Then I rapped and killed his wife and children, and destroyed his house. But he doesn’t want to give me the gold back.

Miscalculation is the right word.

And: it is relevant. You gave away the relevancy yourself. It is called game theory. Games have rules. Break rules see what happens. Or instead be prepared.

Seems like someone broke rules but wasn't thinking through consequences or didn't care about them