Don’t laugh. The news we are about to report is real, and it’s a tragedy: “Tattooed wrists can prevent the Apple Watch’s heart rate sensor from functioning properly, according to some customers. Since the Apple Watch uses your heart rate to determine whether you’re wearing it, you might not be able to use Apple Pay, receive notifications, place calls, or use certain apps if you have tattoos on your wrists” (“Tattoos may stop Apple Watch from working,” CNN Money, April 29).

Hey, didn’t you hear us? No laughing or snickering.