Is there a complete IEquatable implementation reference?

Question

Many of my questions here on SO concerns IEquatable implementation. I found it being extremely difficult to implement correctly, because there are many hidden bugs in the na

Answer 1

Upon reading MSDN, I'm pretty certain the best example of a proper implementation is in the IEquatable.Equals Method page. My only deviation is the following:

public override bool Equals(Object obj)
{
   if (obj == null) return base.Equals(obj);

   if (! (obj is Person))
      return false; // Instead of throw new InvalidOperationException
   else
      return Equals(obj as Person);   
}

For those wondering about the deviation, it derives from the Object.Equals(Object) MSDN page:

Implementations of Equals must not throw exceptions.