In Radical Tenderness: The Value of Vulnerability in an Often Unkind World , the steely political-wife autobiography by Gisele Barreto Fetterman that comes packaged in the candied outer shell of self-help literature, the author writes of wanting, as a new mom, to "be there for one another when it came to daily challenges." One day, absent any apparent invitation, Ms. Fetterman arrives at a friend’s house and "immediately" asks if there is something she can do. Please, if I’m ever in your house,