using System;

    public class Program

    {

        public static void Main()

        {

            try

            {

                DummyWork();

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex);

            }

        }

        private static void DummyWork()

        {

            try

            {

                throw new Exception("dummy");

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex);

                throw;  // I would NOT expect to lose the information about the inciting line 5 above this one in this case.... But I do.  Output is identical.

            }

        }

    }