I've heard the story of Elijah and the Priests of Baal being told as one of the first experimental swindles, rather than the first experiment. It goes something like this: Elijah: Pours 'water' on his pyre. Pyre: Catches on fire Priest of Baal: "Wait was that water or oil? If I pour some of your 'water' on my pyre maybe it will light too..." Elijah: "Put them to death before they can invent repeatability testing."

The water being oil part is so obvious that it reads less like a 'God turned water into fire' story and more like a 'look how dumb those Baal worshipers were, we totally tricked them' story. I've heard it told both ways though.