Really? I mean; really?
The US National Ocean Service had to make a statement that Mermaids do not in fact exist, after they were bombarded by enquiries regarding them in the wake of a programme aired by the Discovery Channel.
"Mermaids: The Body Found" was a work of fiction but was mistaken by a number of people to be a documentary.
I'm guessing they're the same people for whom warnings are printed on Harry Potter broomsticks, reading "Caution: Does not actually fly".......