Challenge!

I just got off the subway after riding for 5 stops with a group of 8th and 9th graders. I have realized that, without question, there is nothing more annoying than groups of teenagers riding public transportation. They are loud and they smell strongly of either body odor or cheap perfume/cologne. Worse still, is the flirting: the play-fighting, the name-calling, the gratuitous hugs, etc. I want to vomit just thinking about the Axe body-spray-drenched flirt fests. I challenge you to think of something that is more annoying.