Such stories are true and the word should be spread across the land as it had been before. We should put a something to this effect on the PGCA website:
Damascus and Twist barrels are dangerous, guns so equipped are worthless paperweights, especially anything stamped Parker Bros. Although you know this is a dangerous gun your heirs may not. You want to avoid any future harm. Fortunately for you, the owners of these dangerous and junk guns there are a few folks who simply want to admire the work of the artisans who built them. We provide a proper and safe disposal service and we will pay a small fee plus shipping to prevent these dangerous relics from hurting you or your loved ones. If you own such a gun contact any of the following PGCA members for an evaluation and disposal instructions.