Do you ever have your bag charms come off or come up missing from your bag? One of mine disappeared several weeks ago, and I have no idea when or where or how. I went to show it to someone and it wasn't there. Do they fall off easily? Is this common? Or do they generally have to be removed intentionally? I'm not sure if it's more likely that I just lost it somewhere or that someone took it. But now I'm afraid to use my other charms because I don't want them to disappear.