A group of elderly Jewish men meet every Wednesday for coffee and a chat. They drink their coffee and then sit for hours discussing the world situation. Usually, their discussion is very negative.

One day, Aaron surprises his friends by announcing, loud and clear, "You know what? I've now become an optimist."

Everyone is totally shocked and all conversation dries up. But then Sam notices something isn't quite right and he says to Aaron, "Hold on a minute, if you're an optimist, why are you looking so worried?"

Aaron replies, "Do you think it's easy being an optimist?"