public void FamilyCTotalPay()
        {
            //Family C pays $21 per hour before 9pm, then $15 the rest of the night

            DateTime startTime = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, 18, 23, 00);
            DateTime endTime   = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day + 1, 2, 20, 29);

            int hoursBeforeNinePM = 3;
            int hoursAfterNinePM  = 5;

            Assert.AreEqual(hoursBeforeNinePM, sitter.FamilyCHoursBeforeNinePM(startTime));
            Assert.AreEqual(hoursAfterNinePM, sitter.FamilyCHoursAfterNinePM(startTime, endTime));

            Assert.AreEqual(138, sitter.TotalPayFamilyC(hoursBeforeNinePM, hoursAfterNinePM));
        }