Picture yourself standing at a bus station in Nairobi, Kenya. The unwritten rule is that none of these minibuses (shared taxis, called matatus) will leave until they have enough passengers. That can be around 20 or more people. So every matatu has a tout shouting at top volume — even banging on the side of the bus — to corral more customers.
All of a sudden, what looks like a discotheque on wheels pulls up.
Music blasts from souped-up speakers. Strobe lights flash on the inside walls and seat backs. The exhaust pipe is purposely pinched to rev like a motorcycle.