http://shinobimartialarts.com Dennis Mahoney, senior instructor at Shinobi Martial Arts Center in Plaistow NH doing a free response demonstration at the Stephen K Hayes Ninja Festival 2010 in Dayton Ohio. Do you live in Plaistow, Hampstead, Atkinson NH or Haverhill MA? Come by and train with Dennis at Shinobi Martial Arts Center http://youtu.be/yb8iXXl45rc