title: Can you use linq to see if two IEnumerables of data contain any common entries?
body: <pre><code>IEnumerable&lt;fishbiscuits&gt; a = GetFishBiscuits(0);
  IEnumerable&lt;fishbiscuits&gt; b = GetFishBiscuits(1);
  
  if ([any of the results in either list match])
  {
   // Do something ie
   Console.WriteLine("I see both a and b love at least one of the same type of fish biscuit!");
  }
  </code></pre>
  
  <p>Can you use linq to see if two IEnumerables of data contain any common entries?</p>