Bagan, in Burma. I was galavanting through the temples in Bagan, being led through choice buildings hundreds of years old by two scamps with whom I had finally made friends (it took a LOT of convincing that I didn't have any more money to spend at their store). But once they were no longer in sales-mode, they reverted into children.
In one temple, we suddenly and temporarily lost sight of the girl, and I chanced to look back, and there she was. A quick impulsive shot, and a moment after she had quickly gotten up and dusted off, and sped up to join back with us.