Cloud VS Restaurant

Cloud Computing is a hot topic in todays IT forums, talks and research.I wanted to understand what a cloud can be from an outsiders point of view. So i went through few blogs and webpages to know what really is this Cloud. Even though i got few points, few were still inscrutable and undecipherable.
I would like to present here a small distinguishing or rather similarities between the Clouds and Restaurants here in India.