I used to think robots had ears, because of "roboteers stand by" on Robot Wars. (circa 2001)
Common law wives existing.
"Desperate Housewives" was a porno.
Lottery balls were sent down from above, "in ascending order", I heard "in a sending order."
A Paedophile is good because it's Greek for lover of children (actually said this at the dinner table aged 9, Mum immediately correcting me with "they love them in a way that is not right.")
Jewelled birds had real diamonds and pearls implanted into their skin.
America is more liberal than the UK/Europe (because of reading about it being a "land of the free" in history around year 2/3, which was when 9/11 was happening)
Ohh.. and my big one was believing there was a wide scale Common Abduction Framework involving social workers removing children for no good reason, to get bonuses for performance, and Family Division judges rubber stamping their orders no matter what. CAF doesn't even stand for that and the whole idea seems to be nonsense.