When my sister and I were in elementary school, we used to hear the big kids singing "Deck the halls with Santa Claus's balls..." around Christmastime. So we sang the song around the house, of course not knowing what "Santa Claus's balls" referred to...I just thought they were Christmas ornaments...Our mom got pretty mad at us but wouldn't tell us why or what it meant.
A childhood belief about father christmas

others believed things like this
- When i was little, i thought Santa Claus was my grandfather— Junie
- I used to believe that, if God would die, Santa Claus would be boss.— Judith
- I used to believe that the Holy Trinity was Dad, God and Santa Claus!— Cathy P.
- Wehan I was little I used to confuse Jesus with God with Santa Claus.— Gui
- when i was a child,i used to believe that Santa claus drove a car and all the presents were in the boot— narration
- i used to believe that a elf familly lived on my window, long after a new my parents were Santa Claus— anna