"However, in regard to modern day revolvers, even though they do not have a safety like you will find on an automatic which will prevent you from pulling the trigger, modern revolvers are equipped with a piece of metal called a transfer bar. When you squeeze the trigger all the way back, this bar will push the hammer forward so that the firing pin will make contact with the primer in the cartridge. If the hammer were in the cocked position and somehow fall forward, without your finger on the trigger, the bar will not engage and the firing pin will not strike the primer and the gun will not discharge. Older revolvers do not have this (I'm not sure when they were first introduced) the firing pin rested directly on the primer and a hard strike on the hammer could cause a gun to fire accidentally."
I know this was quite some time ago, but it doesn't stand to the initial CKIA statement in CakeBeret's story. The CKIA's statement was, "A revolver cannot be discharged unless the hammer is first pulled." Even in the case of a properly maintained new revolver with a transfer bar, a full pull on the trigger with an uncocked hammer will cause the revolver to fire, so his rude statement was also factually incorrect. The fact that newer revolvers won't accidentally discharge like older ones is a sideline to that.
"If I had someone screaming "Wrong Answer" at me, I'd be sorely tempted to scream back, "Cite Your Source!!" That's just obnoxious."
A better answer to such a statement that's so easily disproven is "Wanna bet?" You might as well make some cash while you're making CKIA eat crow.