I was putting my stitch regulator on my Juki, and the spring that is on one of my sensors, sprung across the room. Imagine my terror, in my sewing room, trying to find a tiny little spring. I was tearing through all my fabric on that side of the room, freaking out, finally I found it, I haven't been relieved that much for a long time. Has that ever happened to anyone, when something flew across the room and got lost in your stash.