From a comment at The Firearm Blog:
The phrase “warning shot” was surely coined by the first guy who missed.
Which came up in discussing the new “not-as-lethal” ammunition designed for the Taurus Judge – a .410 shell with 3 rubber buckshot pellets. Stupid. Notice how even the manufacturer isn’t going quite as far as saying it’s “less-lethal”? It sounds like a lawsuit/manslaughter charge waiting to happen.
(h/t Caleb at Gun Nuts Media)