Originally Posted by
Vitruviansquid
I edited out the word "ethical" because I figured it was more a part of the good-evil axis than lawful-chaotic. The important part is whether or not the character is following a "code," an external thing that would force him to decide in a way that may not be what he really wants.
Let me try to explain my reasoning this way:
A. You are faced with a choice of doing X or doing Y. By definition, Chaotic means there's a chance you would do X and a chance you would do Y.
Lawful, on the other hand, means there is no probability and you will always do X or always do Y, depending on the particular law or code you followed.
B. The choice you're faced with making is either to act purely Lawful (X) or to act purely Chaotic (Y)
C. You can be purely Lawful by making choice X in a Lawful manner, where no matter what, you would not have made choice Y.
You can be purely Chaotic by making choice Y with the chance that you could, instead, have made choice X.
D. However, you can be purely Lawful AND purely Chaotic by making choice X although you could, instead, have made choice Y.
The same happens if you make choice Y by the fact that you would always have made choice Y.