Birthday Party
Mom and Dad had a really nice party planned for me that I knew nothing about. They invited all my friends, even my acquaintances; they arranged for my grandparents and all my close aunts and uncles and cousins to be there; they got a big, huge cake of my favorite flavor with my favorite sports team's logo on top; they set up the entire house with decorations when I was at school; they got me super nice presents that, years later, I realized must have cost a lot of money; and they managed to keep it all a secret.