Write about a fad, fashion trend, riot, or panic about which you are familiar.? (You do not have to have experienced it yourself; it is okay to just know?? about this example.)?

Write about a fad, fashion trend, riot, or panic about which you are familiar.  (You do not have to have experienced it yourself; it is okay to just “know” about this example.)  Use either contagion theories, emergent norm theories, or value-added theory in order to explain why people participate(d) in this collective/crowd behavior.