Are madgedon

        private static int GetDayNumber(DayOfWeek dayOfWeek)
        {
            switch (dayOfWeek)
            {
                case DayOfWeek.Monday:
                    return 1;
                case DayOfWeek.Tuesday:
                    return 2;
                case DayOfWeek.Wednesday:
                    return 3;
                case DayOfWeek.Thursday:
                    return 4;
                case DayOfWeek.Friday:
                    return 5;
                case DayOfWeek.Saturday:
                    return 6;
                case DayOfWeek.Sunday:
                    return 7;
            }
            throw new InvalidOperationException("Another day was added to the week.  Life as we know it has ended.");
        }