While we're on the subject of donkeys, I saw this photo used at a conference:
What most of us didn't know until someone who'd worked in Africa told us, was that apparently, this isn't a mistake. Apparently a load of blokes haul it up like that to make loading the cart easier - less far to lift stuff onto the back. Then when it's loaded they lower the donkey down again, and off it goes. Which is why the donkey actually looks rather relaxed (well, resigned maybe) - it happens to it a lot.