Nails Guns Are Powerful. People Are Stupid. X-rays Reveal What Happens When These Two Fundamental Truths Come Together...

Despite the jokes that so often seem to accompany media reports of nail-gun accidents, the rising frequency of such injuries is nothing to laugh at: There are some 14,800 incidents a year among nonprofessionals, according to reports. Most injuries are simple, treatable puncture wounds. But gun-driven nails can also cause more serious problems. They're powerful enough to fracture bones, including the ones that surround your very delicate gray matter.