Name Game Misspelling

ACK! Another round of my name being butchered misspelled at a food place by the cashier. The same place as some of these other wonderful weird misspellings of my name. This time there really should have been no problem. When I said my name, I saw the cashier was a little confused, so I said my name again and spelled it out K-I-R-K I thought the guy/kid/whatever was getting it, but NO. This is the name that the receipt had: Kart. Again I thought I had seen an heard all the variants that my name can give. Guess Not.