A select few: I was convinced that there were people behind my television acting out what I saw on screen. I thought it was amazing they could get an ocean and a lifeguard (Baywatch -watching) in such a small place
I thought sales assistants would be very upset if you chose not to buy anything from thier shop
I was sure my parents would get kidnapped by aliens and the aliens would wear thier skin (thanks Men In Black) but I was sure the only way I could tell if it was them, was to look at thier teeth... alien teeth = not my parents
I used to panic that we would run out of water because the world population kept drinking it