A reader: “Just thought I’d let you know that in the virulently PC People’s Republic of Nyack, New York, I spotted an attractive young woman in a gas station convenience store wearing a sweatshirt that read: ’Pop Culture is Filth,’ with a picture of The Great Derb. I sputtered out a compliment, but I was so tongue-tied I didn’t have the wherewithal to ask her where she’d been all my life. I’m not sure my wife would have appreciated it if I had.”