This is great and is a good example of BJJ being used against a bigger, aggressive opponent!:
http://middleeasy.com/index.php?option=com_content&view=article&id=1828:the-what aburger-mma-fight-that-is-entirely-too-rawesome-not-to-watch&catid=34:organizati ons
White belt BJJ beats Tapout wearing loudmouth.
Awesome video.