Most consider the lanyard an asset, and if used correctly it probably is. But without knowing how it should be set up, and potential problems needing to be considered it can also get you dead.
I’ve always been enamored is it okay to be enamored? with the Model 12. If you’re not up to speed, it’s a K-Frame S&W with an aluminum alloy frame weighing about 18 oz. in the 2" version. Early guns were made for the Airforce and even had aluminum cylinders, but it was soon found they just didn’t hold up.