[lithos]

My groups force evil characters to put effort into being evil. You need to work up a good reason why your character is working with the group, and how you hide it.

I've also played a Forest Gump good character with a group of evil characters. Dumb as a sack of potatoes, but willing to work with people clearing out obviously evil baddies (while actually clearing out the competition from the rest of the parties perspective).

Evil or chaotic doesn't mean dumb or crazy.