title: Can my database have a triangular relationship?
body: <p>Take tables: User, Comment, Snippet.</p>
  
  <p>A User can have many Snippets.
  A Snippet can have many Comments.
  A User can leave many Comments.</p>
  
  <p>In turn, when I diagram things, I end up with something like a triangle.</p>
  
  <pre><code>User 1-------------* Comment
        \           / 
         \         /
          *Snippet 1
  </code></pre>