Was there ever a razor blade in the apple?

I have some things I'm just too nervous I'll forget about by the time next Autumn comes around!  As I find things, I'll post them.  So be on the look out ;)

From the Heath brothers' "Made to Stick," a book required for one of my classes:

Who Spoiled Halloween?

In the 1960s and 1970s, the tradition of Halloween trick-or-treating came under attack.  Rumors circulated about Halloween sadists who put razor blades in apples and booby-trapped pieces of candy.  The rumors affected the Halloween Tradition nationwide.  Parents carefully examined their children's candy bags.  Schools opened their doors at night so that kids could trick-or-treat in a safe environment.  Hospitals volunteered to X-ray candy bags.

In 1985, an ABC News poll showed that 60 percent of parents worried that their children might be victimized.  To this day, many parents warn their children not to eat any snacks that aren't prepackaged.  This is a sad story: a family holiday sullied by bad people who, inexplicably, wish to harm children.  But in 1985 the story took a strange twist.  Researchers discovered something shocking about the candy-tampering epidemic: It was a myth.

The researchers, sociologists Joel Best and Gerald Horiuchi, studied every reported Halloween incident since 1958.  They found no instances where strangers caused children life-threatening harm on Halloween by tampering with their candy.

Two children did die on Halloween, but their deaths weren't caused by strangers.  A five-year-old boy found his uncle's heroin stash and overdosed.  His relatives initially tried to cover their tracks by sprinkling heroin on his candy.  In another case, a father, hoping to collect on an insurance settlement, caused the death of his own son by contaminating his candy with cyanide. 

 In other words, the best social science evidence reveals that taking candy from strangers is perfectly okay.  It's your family you should worry about.

 The candy-tampering story has changed the behavior of millions of parents over the past thirty years.  Sadly, it has made neighbors suspicious of neighbors.  It has even changed the laws of this country.  Both California and New Jersey passed laws that carry special penalties for candy-tamperers.  

As a child of Halloween and a lover of baking, this story is especially interesting to me.  When I was young, we also followed the protocol of no unwrapped or homemade goods gathered during night.  I wish people didn't still feel this way.  I would love to be able to share my baked yummies (yeah, I said that) with everyone over the holiday.  Unfortunately, the possible backlash just isn't worth the risk.

Do you have any candy-tampering stories?  How do you feel about it?