During our trip in Java, Smorg and I took a diverse array of transportation: motorbike, train, bus, bemo, minibus, ferry.
In what seems typical of public transportation, at every stop along the way a parade of people selling things come onboard. They then proceed to constantly try and sell you something while you are both trapped on this moving vehicle. They will actually throw the product in your lap, where you can examine it for a while. They will then come back and either take the item back or you give them the money. Snake fruit, pens, Muslim prayer sheets, doughnuts, fried tofu, magazines, you name it, they sell it. Every now and then I would wake up in a drowsy state as 10 people would storm through the bus throwing things into my lap, while my head spun between reality and sleep.
Most interesting are the musicians that also hop on between stops. Guitar, percussion and singing fill the bus. For bus-singers, their voices were quite good, and it was a welcome change from the hard selling.