I just binge watched the first two seasons of Deadwood on Amazon Prime. (I think I need psychotherapy now).
Regardless of that, we need to ask ourselves, how would Al Swearengen handle this? He would take two quick shots of Scotch, send over a complimentary glass of whiskey to the disgruntled customer and offer up some unbathed female companionship. He would speak in senseless riddles with his eyes rolling trying to make sense of all this, questioning the purpose and ironies of life itself, as two of his hired killers stare holes into the customer while they finger their Colt 45's and Bowie knives. The customer would start sweating and shivering, then lo and behold, the rattle would seemingly repair itself. All is well, next episode.