As I've mentioned before, I bike around the city as my primary form of exercise, and sometimes also as a mode of transportation. And some cyclists do some things that get on my nerve to no end.
I can not, for the life of me, figure out why some cyclists think listening to music via their smartphone or iPod or what have you is a good idea. Cycling requires you to be completely aware of your surroundings. You need to know what's going on in front of you, and have a good idea of what to expect from behind you and from your sides as well.
I also think, as cyclists, we have more of a burden to practice safe standards, especially on multi-use trails such as the Monon Trail and the Cultural Trail. They aren't just for our safety, but for the safety of joggers and walkers. And if a crash does happen, it's likely the person that is hit by a bike that will get hurt the most, rather than the person on the bike.
I'm really not much of a fan of joggers listening to music either, but they aren't likely to be passing people, and when they do, they don't need the space that a cyclist does. They really only need to be concerned about what's in front of them.
Seriously, politics in this state is B-O-R-I-N-G! We need a scandal, stat!