#5: The Hercules, California Glass Fragment Case (2000)
Police in Hercules, California, issued a stark warning in October 2000. Multiple families from a single suburban neighborhood came forward with a frightening discovery. They had found small shards of broken glass deliberately inserted into fun-sized Snickers bars their children collected on Halloween. The incidents seemed concentrated in one area, suggesting a local source. Thankfully, no injuries were reported, but the case was like a reminder for parents everywhere to carefully inspect every single piece of candy.

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