http://www.youtube.com/watch?v=1extTtAiQHw - The players skate as the leader explains their schedule.
http://www.youtube.com/watch?v=YtJuRofNRro - The players body-check a man holding a padded target at the roller derby demo at A-Kon 2011. You can hear people in the audience yelling out a curse word or two, so be warned if you're at work. :)
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