Well, he is Thelonious Monk. That's his name. Hell, for all he knew, the store owner's kid or grandkid was a student at the local middle school and had come home all juiced about hearing one of his concerts. What's he supposed to do, say, "No, the name on the credit card isn't my real name. Well, it is, but I'm not who you think I am, in spite of what my credit card says..."? What a party that would turn into...