Maybe he had one that 'didnt take the chrome'. Back in the motorcycle shop we would occasionally get parts back from the chromers that was bad; had 'spots' or started to peel soon. The process of polishing and plating, first with copper as a base coat, then nickel for color, and finally chrome, which is transparent, has a number of places where things can go wrong. One is when a previously plated part is polished without stripping the plating off. It will look great, but the following plating processes can ' delaminate' (probably not the right term, but you get the idea). A subsequent stripping to base metal and redo always fixed it.
This is giving the dude the benefit of the doubt, he could just be a jerk.