Follow six life-threatening incidents where kids have swallowed unusual items when nobody was watching. A boy swallows a AA battery and doctors must get it out before the acid burns a hole in his stomach. A 7-month swallows several coins and a sequin that sever her esophagus. A toddler swallows a toy car that is out of the reach of an endoscope. A toy trumpet gets stuck in a child's trachea. A girl eats dozens of rat poison pellets that can cause her to bleed to death. A boy swallows three magnets that cause his intestines to develop gangrene.