When we were young my Dad used to make the most gorgeous beef stew. One of my older brothers who was, and still is, very fussy refused to eat it, saying he didnt like it, so my Dad made him "goulash". Same stew just decanted into seperate pot just before serving so my DB thought he had different food.
He still to this day asks my dad to make him goulash when he and his family are coming to my parents for dinner. Everyone knows except him that he gets the same stuff!
Deffo something I will use on DS if need be when older.