Writing about the Bad Bobbin reminded me of a story from my childhood. Taking a page from Alison's book (and possibly her blog), I share with you an anecdote:
Mom and I were taking spinning lessons together (which you can hear about in this episode of Cast-on), and we had come home with a spinning wheel. Enthusiastically, I filled the first bobbin, and Mom and I changed the bobbin.
I tried sitting down to spin again, and it wouldn't work. It wouldn't GO. The wheel was moving, the flyer was spinning, but nothing was happening!
Mom turned to Dad and deferred to his degree in Civil Engineering. He and a friend (another engineer, though I'm not certain what flavor he is) fussed with the wheel for over an hour. No luck. They determined that the wheel was broken and COULDN'T work.
We called the teacher the next day, and she suggested checking the tension. Which was dangling, unfastened.
Spinning Wheel: 1, Two Northwestern Engineers: 0.