I was fortunate to be able to attend a John Farnam class locally in 2010. Excellent instruction, some unique drills, and a pretty intense test at the end to earn your DTI pin and successfully complete the course. But the highlight was during an afternoon break, John told a story of going to Philly to train a group of Police Officers, all happened to be Black guys. After they had trained on malfunctions, the "tap, rack, bang" drill, they came back from lunch with a hastily prepared "tap rack bang Rap". When John turned his ball cap backwards and did a demo, he brought the house down. He's a hell of a guy.