private boolean isDaysNegative(DateTime subtractor){
		if (this.getYear() > subtractor.getYear()){
			return false;
		}
		else if (this.getYear() == subtractor.getYear()){
			if (this.getMonth() > subtractor.getMonth()){
				return false;
			}
			else if (this.getMonth() == subtractor.getMonth()){
				if (this.getDay() >= subtractor.getDay()){
					return false;
				}
				else return true;
			}
			else return true;
		}
		else return true;
	}