namespace TestThisNull
{
    using System;

    public static class Program
    {
        private static void Main()
        {
            var method = typeof(Foo).GetMethod(nameof(Foo.Bar));

            var action = (Action) Delegate.CreateDelegate(typeof(Action), null, method);
            action();
        }

        private class Foo
        {
            public void Bar()
            {
                // "Expression is always false" :-DD
                Console.WriteLine($"this == null = {this == null}");
            }
        }
    }
}