Sometimes I feel like I’m a member of the last well-mannered generation—that is, the last generation to know swift discipline. No one was swifter than my mom. I can remember when she used to snatch me up in front of the whole congregation for no good reason other than to inspect the shrubbery outside the church. Back then, I always thought it was unfair to have a momma with a green thumb, and by green thumb I mean she could...