Nobody has actually said that out loud to me, but I think it's because they're not there when I'm working on things. Today I managed to get the sewing machine to work. The bobbin tension isn't perfect, but it isn't making big wads. I had sewn two seams and was about to start on the third when I noticed I'd sewn the first seam on the inside and the second on the outside. Fortunately, I'd found my seam ripper the day before.