"Lenore D." must have a difficult commute- she takes offense at a lot of commuting behavior!
At the top of her list is the "Music Demon":
"He's listening to this music, and it's so loud you don't need to share his headset - you can hear it at the other end of the carriage. He won't have any hearing left in 12 months if he keeps up this noise level. Despite the misconception that this is not limited to young people and rap music, this blasting of tunes is also regularly displayed by 30-somethings with country tracks and the familiar middle-aged AC/DC fan in his business suit - easy to spot with the foot beating to Angus Young's guitar."