Old School Misinformation - Urban Myths

Before the internet, did you hear any urban myths and factless rumours? What were they?

Here are some I remember:

Mikey (a kid in a popular cereal commercial) died of eating Pop Rocks and drinking Coke at the same time.
Rod Stewart had his stomach pumped after collapsing during a concert and they found dog semen in his stomach contents.
Richard Gere got a gerbil stuck up his ass.