I'm really impressed by yr videos. As a grey-haired middle-aged lady, I rarely am at the point of having to defend myself physically, but I do live in a tough neighborhood & work around highly unpredictable people. I'd love to know the teacher's name; mighty cool character, with a great voice, who I think SHLD be famous, enough so where I've spent the past 1/2 looking for the rest of yr videos. The realistic endings are the best, just as intended bringing the staged situation into real life & helping the points made stick.