In our age, not so many remember the real reason for the big fight and eventually the split between the sons of Abraham; Ishmail and Isaak. As we know, the former went on to become the founding father of the Arabs, whereas the latter fathered the Jews. But their real beef was about how to make coffee (or kava as it was called back then). Ismael wanted to boil it in the traditional way in a brass recepticle over the campfire, whereas Isak insisted on his own invention, the back then revolutionary "drip through" technique, better known as the coffee filter. In fact Isak was so stubborn about this that after this incident, he started wearing his coffee filter on his head, as a powerful symbol of innovation and independence. This later evolved into that typical Jewish hat, the yarmulka.

To us northerners who always have to keep busy with important things like preparing for the winter, it seems silly to have a war between brethren nations for thousands of years over how to make a goddamned cup of coffee, but that's human nature for you. Most of them don't even have to get shitfaced in order to become aggressive. Now, a fight over beer we can understand... but coffee? People of the Middle East are well weird.