I've come across this a bit, the fact that Xtians particularly are ignorant of the dimension of belief in 'their' god. They got Jehovah (God the father) from the Jews and added Jesus., the Muslims believe they had the final prophet in Mohammed to give them the definitive strain, and it does not include Jesus.  I know that ignorance is bliss, and the level of scientific literacy is not good, but this is basic primary school stuff surely? How do people not know this? I must sound like a frustrated History teacher! So... show of hands, true of false!