Fleishmann and Pons were a pair of Chemical Engineers running experiments for a different reason and got some odd Voltage readings - they leapt to the conclusion that energy was being got out of their experiment of a certain order, and went to the press.
big mistake - should have gone and found some physicists and/or tried to verify their results first !
(and that includes setting up the same experiment again from scratch - preferably having someone else do it ! - repeatability :roll: )
however, it did provide the basis for an interesting thought experiment in my A-level class !