My step father, one of those with an immense store of hands-on practical knowledge. A plumber by trade, did he pass it on to you? He passed a lot of those skills on to me. I learned a great deal from working with him repairing plumbing pipes, during those times, with lead. I still know more than college educated plumbers, at least if they aren’t engineering majors. I don’t think he knew he was passing it on. But at least some of it happened anyway. Thanks dad for sharing your knowledge at zero cost! Love always, you son.