title: "Overloading" standard GORM CRUD methods
body: <p>Wanna do the following:</p>
  
  <pre>
  BootStrap {
    def init = {servletContext ->
    ........
    MyDomainClass.metaClass.save = {-> 
       delegate.extraSave()
       //////// how to call original save() here?
    }
  
  }
  .........
  }
  </pre>
  
  <p>P.S. MyDomainClass#extraSave is defined as <code>public void extraSave(){.....}</code></p>