It's simpler than that. You just don't think about getting caught, it's not part of the plan. Sentence length has a small effect on crime rates, but what reall

It's simpler than that. You just don't think about getting caught, it's not part of the plan. Sentence length has a small effect on crime rates, but what really matters is enforcement levels. If you have a 99% chance of getting caught & punished, you don't bother.