A groaner for you all... A rabbit hops its way into a trendy cafe in Melbourne. It says to the nonplussed waiter, ""I've munched my way from Sydney to here and I'd like something different to eat."" ""What would you like?"" asks the waiter. ""A leaf of fresh lettuce between two pieces of toasted white bread, thanks."" The waiter makes up the meal, sets it down in front of the rabbit, who gorges himself upon it happily. Then, he asks for seconds, ""only this time, make it wholemeal bread,"" he sa…