We visited a minority village in the Central Highlands

Funny story here. The government sent a doctor to this tribe to educate the people about birth control. He demonstrated the use of condoms on his thumb, and came back a year later confident he would find less babies. Much to his surprise the tribe leader complained about the condoms not being effective because there were just as many pregnant women around. He affirmed that they were indeed using the condoms on their thumbs but still getting pregnant. Needless to say, another presentation was required :)