[rules-users] example needed

Is there a Pet store kind of example available which a newbie can download and learn how actually different component in a web application interact with drools using best practice, i have the book jboss drools Business rule by Paul Browne, but i still feel there is a need for pet store kind of application, can any one guide me where i can find some appliaction using drools which i can download and understand full capability of drools