static void Main(string[] args)
        {
            IColleague c1 = new Colleague("Alice", "pattern", "shop", "beer");
            IColleague c2 = new Colleague("Bob", "pattern", "beer");
            IColleague c3 = new Colleague("Clyde", "awesome");

            #region Spammer

            //IColleague c4 = new Colleague("Spammer");
            //c1.Register(c4);
            //c2.Register(c4);
            //c3.Register(c4);
            //c4.Register(c1);
            //c4.Register(c2);
            //c4.Register(c3);

            #endregion

            c1.Register(c2);
            c1.Register(c3);
            c2.Register(c1);
            c2.Register(c3);
            c3.Register(c1);
            c3.Register(c2);

            c1.Send("A pattern is emerging");
            c2.Send("Wanna get an awesome BEER?");
            c3.Send("Does anybody care?");
            c3.Send("Does anybody care?");

            #region Spammer

            //c4.Send("$$$");
            //c4.Send("Get rich fast!");
            //c4.Send("Enlarge your penis");

            #endregion

            Console.ReadLine();

            Console.WriteLine($"{Message.InstanceCount} message(s) were sent");
        }
        static void Main(string[] args)
        {
            IMediator mediator = new Mediator();

            IColleague c1 = new Colleague(mediator, "Alice");
            IColleague c2 = new Colleague(mediator, "Bob");
            IColleague c3 = new Colleague(mediator, "Clyde");

            #region Spammer

            //IColleague c4 = new Colleague(mediator, "Spammer");
            //mediator.Register(c4);

            #endregion

            mediator.Register(c1, "pattern", "shop", "beer");
            mediator.Register(c2, "pattern", "beer");
            mediator.Register(c3, "awesome");

            c1.Send("A pattern is emerging");
            c2.Send("Wanna get an awesome BEER?");
            c3.Send("Does anybody care?");
            c3.Send("Does anybody care?");

            #region Spammer

            //c4.Send("$$$");
            //c4.Send("Get rich fast!");
            //c4.Send("Enlarge your penis");

            #endregion

            Console.ReadLine();

            // We are however SLIGHTLY cheating here, because Colleague -> Mediator
            // is not counted... But... :-)
            Console.WriteLine($"{Message.InstanceCount} message(s) were sent");
        }