This was the first public action I ever organized, back in 2000, and it has stayed with me as an example of a successful project and influenced  a lot of the other things I’ve done since. I made this wooden machine out of shipping crates and cable spools with a support frame. A group of friends and I pushed it around disrupting traffic, and then rode it down a big hill. There were no brakes to speak of, so we were worried about hitting something or somebody, but in the end it was fine, and actually that was a little disappointing!