Originally Posted by allaboutmusic

There is a really annoying trend of people playing music on their cellphones through the built-in loudspeakers in public places - specifically public transport. I don't want to hear your stupid manufactured-pop crap when I'm standing up in a sweaty bus stuck in rush-hour traffic.

Or even more stupid - when someone decides to go listen to their entire ringtone collection at full volume. On public transport.

The worst thing is that people don't say anything here, because there is a genuine risk that the perpetrator might turn around and knife you. I have certainly given thought to knifing these people. GRRR.