11-year-old Mitchell Anderson had just finished practicing in the batting cage and was gathering balls in his helmet. Unfortunately for him, there was one ball left still rattling around in the machine.

The ball shot out at 70MPH, striking Anderson in the skull. He wasn't knocked completely unconscious and was surprised to discover his head swelling in instead of out. This was because he had multiple skull fractures that were causing blood to collect in his brain. Bad news.

Surgeons had to relieve the pressure in his skull to keep blood from entering more parts of his brain. Because seven areas of his brain had collapsed, there was a fear that permanent brain damage could result.

Now, 7 years later, Mitchell is one of the top players on his high school baseball team, batting a .455 with a .714 on-base percentage.

An impressive recovery and comeback to be sure, but he's got to know that somewhere out there is a pitching machine that wants to finish the job. Watch your back, Anderson. [News Journal Online]

Machines Behaving Deadly: A week exploring the sometimes difficult relationship between man and technology.