For an author, the nice characters aren't much fun. What you want are the screwed up characters. You know, the characters that are constantly wondering if what they are doing is the right thing, characters that are not only screwed up but are self-tapping screws. They're doing it for themselves.
Terry PratchettSomewhere around the place I've got an unfinished short story about Schrodinger's Dog; it was mostly moaning about all the attention the cat was getting.
Terry PratchettNever trust any complicated cocktail that remains perfectly clear until the last ingredient goes in, and then immediately clouds.
Terry PratchettPeople couldn't become truly holy, he said, unless they also had the opportunity to be definitively wicked.
Terry Pratchett