I just got an email on this from Joe. I took a self defense class with Joe in September which was nothing short of outstanding, and worth three times what he charged. I'm rescheduling the first aid class I am giving so I can take this. If you are familiar with the Framingham/metro west area, you probably know that there is an "edged weapons" culture immigrating into the United States.
http://www.jmjkd.com/defensive-Knife-Course.html
http://www.youtube.com/watch?v=eu-jTy71Z2g
http://www.jmjkd.com/defensive-Knife-Course.html
http://www.youtube.com/watch?v=eu-jTy71Z2g