i used to work in a lab/classroom building on a campus, so it was a fun mix of staff, professors, and students at any given time.
anyway, one time im doing a #2 in a stall and this guy comes in with his jams going full tilt from his phone's external speakers, i guess mounted on his backpack, so we could all enjoy his selections.
i cannot imagine taking up that much space in communal areas, but people ride harleys through tiny little micropolitan downtowns without being clotheslined, so i guess it will continue.