‘The French writer Émile Deschamps claims in his memoirs that in 1805, he was treated to some plum pudding by a stranger named
Monsieur de Fontgibu. Ten years later, the writer encountered
plum pudding on the menu of a Paris restaurant and wanted to order
some, but the waiter told him that the last dish had already been
served to another customer, who turned out to be de Fontgibu.
Many years later, in 1832, Deschamps was at a dinner and once again ordered plum pudding. He recalled the earlier incident and told his friends that only de Fontgibu was missing to make the setting complete…and in the same instant, the now very elderly de Fontgibu entered the room’ (Wikepedia)
The more think about this, the more wonder if de Fontgibu was an imp and was tipped off by a waiter. But tomorrow, will probably think something else.