I will never forget the time I managed to sew a 14-inch zipper into a top--with the top TWISTED around the neckline! I've sewed dozens of zippers, and that's the only time I haven't managed to get it right on the first try. I still have no earthly idea how I managed to do that. After the initial fit of rage, I had a good laugh and a beer and put it in a time-out til the next day. ;)