Psychology of Jewish humor

When simplicity hits the mark, it's genius. This Jewish joke, distilling an aspect of social psychology to its essence, could not be more priceless. What's funnier than Jewish humor?

A man gets shipwrecked on an island that’s less than half a mile around. When he’s rescued years later, his rescuers discover that he’s built two synagogues! “This one,” he says, bringing them into the sanctuary, “is where I’ve gone every week to talk to God and to keep my sanity. And that one,” he shouts, pointing at the second synagogue, “I wouldn’t be caught dead in that one!”