“When traveling in Myanmar, the last thing you want to put in your money pouch is your actual money. Across the country, the slightest tear, stain, corner crease or any imperfection will render a United States dollar-denominated bill unacceptable. The practice can be a special source of anxiety for travelers who have flocked to Myanmar since the country’s recent political reform and opening to the wider world. Only in the past year or so has Myanmar’s tourism economy matured beyond anything other than cash. With no access to overseas banks, a traveler who accidentally sat on their wallet and creased all the bills within had little recourse.”
http://www.atimes.com/atimes/Southeast_Asia/SEA-01-030713.html