Recently, I shared a funny story about doctors swallowing LEGOs for science. This is a darker story about children swallowing more dangerous things. The number of foreign objects swallowing deaths is up in part because of a proliferation of button batteries which stomach acids can rupture.
Kids under six tend to swallow things. As electronics have gotten smaller, button batteries have become more common to power them. Several hundred thousand kids are estimated to have swallowed something enough to warrant an ER visit. Thousands of cases are fatal.
The recommendation is to give the kid older than a year honey to help neutralize the stomach acid and take the kid to the emergency room.