Oh, I don't need to excuse anything, it was entertainment for me so thank YOU for not getting the joke and being rude to someone for making the joke. It just adds to the entertainment factor.This isn't something to joke or laugh about so excuse my lack of humour in the matter.
As a side note, do you often find trying to convince someone of "seeing the obvious" works all that well? Seems if it is truly obvious that they won't need your information or disagree at a fundamental level, at which point, what is the point of arguing? ...... and hence my entertainment!