You don't want fully-specified rules because a rule with strict boundaries has loopholes. You actually want a clearly allowed area, a clearly disallowed area, a

You don't want fully-specified rules because a rule with strict boundaries has loopholes. You actually want a clearly allowed area, a clearly disallowed area, and a gradually increasing gradient of punishment in between, so that a small change in behaviour produces only a small change in punishment, and avoiding punishment requires a large change in behaviour.