We all have friendships. Some fill us up and others suck the life out of us. Is there any hope for those "extra grace required" relationships that eat away at our joy? My friend Mary DeMuth reveals the seven deadly friends you're likely to encounter in her new book The Seven Deadly Friendships. Through wit and wisdom, she will equip you with the tools you need to effectively deal with those difficult relationships and show you how to become a better friend in the process.