title: C# - Are Parameters Thread Safe in a Static Method?
body: <p>Is this method thread-safe? It seems as though it isn't...</p>
  
  <pre><code>public static void Foo(string _str, Guid _id)
  {
      _str = _str + _id.ToString();
  
      /*
          Do Stuff 
      */
  
      return 
  }
  </code></pre>