Why do people use their phones as tiny, obnoxious boomboxes on the subway?

I wouldn't want to hear your goddamn lousy music played over the best stereo system in the world, and I definitely don't want to hear its tinny, MIDI-fied tones spewing out of some bright pink keyboard phone perched on your shoulder. If you can afford a cell phone, you can afford a pair of ear buds, especially when you factor in the cost of medical bills for getting a pink keyboard phone extracted from one of your nostrils.