static void Main(string[] args)
        {
            var cloack = new Cloack();
            var person = new Person(cloack);
            person.Unregister(cloack);

            cloack.SetTimer(200);
        }
 public void Unregister(Cloack cloack)
 {
     cloack.TimeIsUp -= PersonMsg;
 }
 public void Register(Cloack cloack)
 {
     cloack.TimeIsUp += PersonMsg;
 }
 public Person(Cloack cloack)
 {
     cloack.TimeIsUp += PersonMsg;
 }