They call them mules, people who smuggle drugs inside their bodies.
Mules have to ingest the drugs in a particularly strategic manner.
Monitored by drug dealers, they swallow containers a few at a time over the course of several days, so they don't throw them up. They eat miniscule amounts of food and very little water. Some of them begin passing the containers even before they reach the U.S. border, and are forced to re-ingest them. And through it all, they have to pray that none of the containers burst, causing a painful and ugly death. In 1999, border authorities in California made 4,907 seizures totaling 396,249 pounds of narcotics, and though a good amount of the drugs were carried in by mules, the majority came through in more conventional fashions.