Cotter Pin

Years ago I used to do a lot of work with my dreams and I decided that it was time to try that again. Especially since I have been dreaming a lot, although I haven't made a point in remembering them. The other night the only thing I remembered was a pin in a wheel - lynch pin, key pin - so I Googled images and there was the cotter pin or cotter key which made me think of Leo Kottke who I hadn't thought of for years. We used to listen to him when I worked at Dugan's Deli. And there was a great video on YouTube from the 70s.