When our first house got burgled after we came back from a holiday I believed evil/nasty cats destroyed the house and stole stuff, I would go on as a kid to see a cat in the street and be careful approaching it just incase it was an evil cat that destroys houses and steals belongings.
When we moved into our new house there were no chimneys and I wondered how Santa got in the house, my dad jokingly said he comes in through the window or the back door. For the 3/4 years after that I believed in Santa every Christmas I would make sure a window or door was left unlocked for Santa to get in