Roadside service on the bus
Everywhere the bus or dalla dalla would stop or even pause to go over a speed bump a swarm of people with fruit, veggies, and snacks would surround the windows of the bus. When one of them saw me they would immediately yell mzungu mzungu and my window would draw and even larger crowd- presuming that since I was white I would want to buy all of their goods. This system keeps the buses moving without ever having to stop~ a good and a bad thing!