The Jerome Gambit in the Italian (1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+??) which is completely refuted by not one, but two brain-dead simple lines. 4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ and now both 6...Ke6 and 6...Kf8 refute the gambit, although 6...Ke6 requires some homework.Certainly, chesster3145's opinion should be respected, and I appreciate his perspective; although I wonder if refuting the Jerome Gambit is all that "brain-dead simple" - at least in the world of the online club player.
I just checked with The Database, and I noticed 1,120 Jerome Gambit games with 6...Ke6, in which White scored 54%; and 674 Jerome Gambit games with 6...Kf8, in which White scored 50%.
(Of course, I challenged chesster3145 to a game. We will see.)