A reader from Texas writes to tell me that ‘Doctor Pepper’ should be written ‘Dr. Pepper’. He’s right. My mistake. The only time I tried that essence of evil I threw the can away so quickly that I cannot have had time to fix the correct spelling in my mind. Another reader (also from the Lone Star state) e-mails that there is a ‘Dr. Pepper’ museum in Waco, Texas.

Now, I’m not saying that Dr. Pepper devotees can be compared with an esoteric religious sect, but…