Warning: Approaching Rant

A quick question for you all - which do you think is the most annoying regular event on my way to or from work?

a) Seeing rabbits frisking in the fields.
b) Finding that they've run out of the free newspaper at the station, or
c) All the annoying, ill-mannered little brats on the bus?

Ok, I never said it would be a difficult question...
I'm sure that when I was younger it wasn't considered socially acceptable to play games involving the throwing of sweets down the length of the bus, or to sit on the back of the seats and perch on the shelf at the front of the bus.
No-one would be trying out all of their most irritating ringtones, or screeching to their friends sitting only a few seats away about their alcohol-fuelled antics the night before.
However, all of this pales into insignificance beside the latest teenage obsession. For some reason, teenagers seem incapable of amusing themselves for even the shortest of bus rides without playing music through their phones, at a volume that is clearly audible to all of the other passengers. It might not be so bad if they were playing music that was vaguely tolerable, but it's usually dance music that's been speeded up so that it sounds like it's being performed by chipmunks on speed. What I really want to do is throw all of their bloody phones out of the window, but they'd beat me up if I did, as I'd be severely outnumbered.
If I've got my MP3 player, then it's not too much of a problem, but I tend to forget it *sigh*