3. Closed meetings or executive sessions.

S.D.C.L. § 1-25-2 provides the subject matter bases for closed meetings. However, it should be noted that the statute is precatory rather than mandatory with respect to closure. In short, other than the odd statute here and there requiring closure in certain instances, e.g., certain gaming commission meetings under S.D.C.L. § 42-7B-8.1, executive sessions are not required.