My friend was a witch. When I got the jacket back she had washed it, but it felt... stiffer. Still comfortable, though. I wore it for a couple more years, and it wore very well. I even used it to brace lumber I moved in my car. It didn't seem to wear at all.

One day, some jerk at work stole it and I never saw it again. I mentioned it to my friend, and asked her what she did to it. She would only say she 'treated' it -- and the guy who took it was in for a long stretch of very bad luck.