This is a true story,
When i was a kid, we used to go to a big family party at xmas, hosted by my nan.
All parts of the family would join in, we would have music, usually a family member who was in a band play there. And as a tradition, one of the parents would dress up as santa with the entire outfit and give out presents to all the children (me being one of them)
anyway, one xmas, my dad was chosen to be the santa
I was at the party and this maybe the 2nd or 3rd iteration of the party that i was involved in over a couple of years.
Anyways, getting ready for the santa / present giving segment of the event, i had entered a room and found my dad getting ready to "become" santa. Getting the costume on and everything.
It was at this point i found out that he wasnt real