void HaveSomeFun(bool summers) { string waterGun = < Some Value > string jacket = < Some Other Value > ArgumentValidationHelper.ValidateNotNullOrEmpty("WaterGun", waterGun); ArgumentValidationHelper.ValidateNotNullOrEmpty("Jacket", jacket); if (summers) { Console.WriteLine("Using {0}", waterGun); } else { Console.WriteLine("Using {0}", jacket); } }