Marty Kihn was the nicest guy in the worlduntil he got fed up with being passed over for promotions at work, tired of being suckered into walking his neighbors dog, and sick of being disrespected by the man who sold him his morning coffee. On the day he turned forty, Kihn set out to transform himself from Mr. Nice Guy into a rule-breaking, power-mongering, Fox Newswatching asshole.