The round stingray is native to the eastern Pacific coast and is notorious for injuring swimmers and surfers. laszlo-photo/Flickr hide caption

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The X-ray reveals a blowdart lodged in a teenager's windpipe. Reproduced with permission from Pediatrics @AAP hide caption

itoggle caption Reproduced with permission from Pediatrics @AAP

That flat screen can still be dangerous if it falls off the wall. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Don't get near that grill with the spray-on sunscreen. Lisa Thornberg/iStockphoto.com hide caption

itoggle caption Lisa Thornberg/iStockphoto.com

Soda bottles and household chemicals are sometimes used to make low-power bombs. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Randy Moss of the 49ers glides down the field, under an arcing football, on his way to a touchdown against the Patriots on December 16, 2012. Jared Wickerham/Getty Images hide caption

itoggle caption Jared Wickerham/Getty Images

Inglewood High School cheerleaders perform in front of the Space Shuttle Endeavour as it is transported through the streets of Inglewood and Los Angeles on October 13. ROBYN BECK/AFP/Getty Images hide caption

itoggle caption ROBYN BECK/AFP/Getty Images