Veteran Irish American entertainment writer Mike Farragher lightens up and turns a critical eye on his life and upbringing in "This Is Your Brain on Shamrocks2: 50 Shades o' Green," the second in a series of essay books that contain a ribald look at life, faith, an Irish mother's guilt, culture, and family. "If I am a shamrock, then my roots are tangled in a compost of debilitating Catholic guilt, repressed sexuality from years of nuns shepherding impure thoughts with corporal punishment, and a shadow of doubt that the other shoe is about to drop whenever you find yourself at a peak in your...