When I was a toddler, my grandmother took me to the Easter service, at which everybody holds candles. At midnight, lighted candles are brought from the altar and everybody lights theirs from these. When this happened, I burst into "Happy Birthday to You", much to the amusement of all, including the priest. (I have heard of one other kid who did the same, and I'm sure there have been others.)
A childhood belief about church

others believed things like this
- As a kid, I use to believe that candles were made out of ear wax.— CC
- I used to think that the wax statues at Madame Tussauds were made of recycled candles and crayons.Anon
- I used to think that everyone's birthday, including my own, always had to be on a Sunday.Anon
- My 7 year old nephew holds the opinion that the correct name for a pidgeon is a "city chicken".— Bastard
- Maryland was actually a huge amusement park, i.e. Merry-Land, like Disneyland. — Julianne
- Up until I was almost 11, I thought that a birthday suit was a special outfit you wore only on your birthdayAnon