Kaz Earymir

Ok, either I'm suffering from a mental block, or I'm just thick. I've read K9's TOT post about 10 times now (gathering as much info as possible before I get a dog) and I just don't get how to do it. I'm more of a learning by doing/having someone show me, then try it myself person rather than a read it of a screen/book/paper etc person. And I agree with an earlier post - where's the demo dvd? lol