Hunk.cs

class T : IEquatable<T> {
	public sealed override int GetHashCode ()
	{
		return 4; // guaranteed to be random
	}

	public sealed override bool Equals (object o)
	{
		var t = o as T;
		return t != null && Equals (t);
	}

	public bool Equals (T other)
	{
		if (Object.ReferenceEquals (other, null))
			return false;

		if (Object.ReferenceEquals (this, other))
			return true;

		return true; // real equality logic
	}

	public static bool operator == (T x, T y)
	{
		if (Object.ReferenceEquals (x, null))
			return Object.ReferenceEquals (y, null);

		return x.Equals (y);
	}

	public static bool operator != (T x, T y)
	{
		return !(x == y);
	}
}