title: Related content - does not display current node
body: <p>I am currently working on displaying related articles for my content type (article). I created view block for that specific content type, but when i for example display node with id 191 on the sidebar where my related articles are placed, its showing the title of node id 191 too.</p>
  
  <p>block view settings:
  aggregation: Yes
  Fields: tried to add content nid, but nothing showed</p>
  
  <p>What's wrong with my settings, and what should I modify? One more question its possible to show these related items randomly?</p>