or moving road blocks.
If you have ever driven through Arusha you will have encountered a mkokoteni (a person pulled cart). They are quite a hazard. They tend to take up half a lane, blocking traffic or causing impatient drivers to do crazy things to pass them.
However, I admire the strength and endurance of the men who negotiate them around the city, delivering impossibly heavy loads.
A mkokoteni costs about 2000Tsh ($1.50) to hire. And apparently they are all registered with their own number (although I'm not sure who would keep a check on such a statistic).
Today Danieli and David (one of the guards from the school house) hired one to collect bags of chicken poo (mbolea) for the school's front yard.
I of course was keen to get a photo of one close up, and Danieli was keen to jump on board and pose.