THe principal said bandanas on your jeans or hanging out of pockets or on your head(considered a hat) is offlimits becuase it shows gang symbols.
So, my friends(i dont particulary do this, becuase its faggish) put them around their necks. Thats just one of them. We have been using excuses about stuff.
For me and 2 of my friends, every time a teacher makes us do something i can say " you're doing this becuase im fat!" and then they say " okay, then lets have jonny instead!"
its basically a pure way to get out of something embarressing.