Prints "this is null" without ildasm/asm round-trip

gistfile1.cs

using System;
using System.Runtime.Remoting.Proxies;

namespace CtorReturningNull
{
    class Program
    {
        static void Main()
        {
            new Devil().SayHello();
        }
    }

    [NullInstanceProxy]
    class Devil : ContextBoundObject
    {
        public void SayHello()
        {
            if (this == null)
            {
                Console.WriteLine("This is null");
            }
            else
            {
                Console.WriteLine("This is not null");
            }
        }
    }

    [AttributeUsage(AttributeTargets.Class)]
    class NullInstanceProxyAttribute : ProxyAttribute
    {
        public override MarshalByRefObject CreateInstance(Type serverType)
        {
            return null;
        }
    }
}