When I was a kid growing up in Pennsylvania there were a series of bigfoot/ufo sightings. I'm not making this up:
http://www.amazon.com/Silent-Invasio.../dp/0966610830
Imagine being seven and reading about this stuff in the paper. Pittsburgh Magazine reacted with a joke cover that had an illustration that portrayed hundreds of sasquatches leaving ufos downtown and invading the city.
That issue arrived in the mail the same day that my parents decided to try leaving me home alone for a few hours for the first time. I was too young to realize that the magazine cover was a joke, I assumed that it was real news. I spent that afternoon under my bed with my dog and a baseball bat.