I play lawful good.
Dark Brotherhood was lawful good in Oblivion. The law decided who got the death penalty. Even the sleeping twerp in the Inn was naughty.

Perspective and a bit of a wink and nod from the gameplay itself.
Then after I manage to Character Death Real a handful of LG characters and want to test the game engine, I'll make a quickie TEST character who will do very naughty things, just to see how tough they are. TEST characters aren't any fun, so, I just pop them in and out as soon as I see the difficulty differential. Characters get deleted in about 5 minutes.
Then, another handful of characters. LG
Then, when I think I've seen and done it all, open the Prima Guide and see what I MISSED and go back with a new naughty naughty to see it first hand.
Naughty characters are never any fun for me, they are just exploratory surgery.