My sister and I both couldn't figure out 1. how Santa came down our chimney, as it was very small and went into the oil-burner (a big scary box in the basement) or, once we kind of figured out that maybe Santa didn't really stop by; 2. Where my folks hid the presents.
Between the two (Santa and parents), we figured that some old man, who must have looked a bit like Santa (but thinner) would come by the house Christmas eve, and my parents would buy the presents from him. I still remember what he looked like.
And I STILL don't know where they hid the presents!
A childhood belief about father christmas

others believed things like this
- when i was little i thought that jesus delivered presents on christmas not santa .— gaby
- 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 at Christmas if your house never had a chimney then santa came through your letter box— Rhys James
- I used to believe that santa had a spare key to our house because we had no chimney.— Karl Andrade (Bombay, India)
- Until i was 8, I believed that, If you didn't have a chimney, Santa Clause would come in through the toilet.— Maya
- I used to believe that Santa Ana winds actually came from the city of Santa Ana, CA— Fishfood