My uncle did a mission trip to Africa to teach a village how to raise pigs for food. They flew in with a bunch of pigs, built pens for them, Food and water troughs, and taught them how to breed them so they could always have meat. Two weeks of work and teaching. They went back a year later to check on the village. They had thrown a giant party the night after my uncle left, slaughtered and ate all the pigs, sold the feeders and fencing, and were really pissed off that the mission didn't bring them more pigs.