I think the law is a good second line of defense. Humans are wired to think "if I gave into that Intrusive Thought, I would suffer consequences." So that most

I think the law is a good second line of defense. Humans are wired to think "if I gave into that Intrusive Thought, I would suffer consequences." So that mostly keeps us in line. But, a good password and some input validation also get you pretty far; nothing is better than a computer at telling you "No!" No judge, jury, or building with bars over the windows required. Just some text in your text editor, and then if someone wants to be evil, they can't be. Pretty good.