building character

WHAT IS YOUR CHARACTER'S GREATEST FLAW?
You can answer as your character or as yourself, the writer. Try to make your answer at least 100 words (though this is in no way required) and be as detailed as possible! This is something not everyone likes to think about, but even the best good guys have something wrong with them. What is it? Remember: these questions are for original characters as well as canons. (Don't forget to follow the posting guidelines.)