"Can I try on your hat?"

I was in Costa Rica and met an Englishman who worked at the English equivalent of Spencer's. He said Terry Pratchett came through and they had a brief conversation as I was in Costa Rica and met an Englishman who worked at the English equivalent of Spencer's. He said Terry Pratchett came through and they had a brief conversation as follows: "Are you Terry Pratchett?" "I am." "Can I try on your hat?" "No." and that was that.