Don't feel too bad, Shug, I think most of us have done worse than that. Take my new Peacemaker. I finished it off, hung it on the wall (no longer having a local flying field), and finally got round to its maiden flight a couple of months later on a weekend away. Fired up the engine, gave it one last control check, and took off. Very nice so far. Then it became apparent that I had no control over the model. It climbed up over my head, then buried itself in the ground at full speed, not far from where it started, while I stood there feeling sad and mystified. On inspection, the pushrod was no longer attached to the control horn. I normally either solder on a retainer, or use one of those spring retainers that Brodak sells. In this case, there was no evidence that there had ever been any sort of retainer at all, and the pushrod was free to depart the control horn at a time of its choosing. I think it was that one last job that I hadn't got around to doing, and then totally forgot about. Everything seemed to be working normally, and of course the control horn is out of sight and out of mind. Did I feel silly? Yes, I did. Luckily the ground was soft, and the damage was limited to a broken Taipan needle and a bit of fuselage cracking. I deserved far worse!