Furiosus nullum negotium gerere potest, quia non intelligit quod agit

A lunatic cannot transact any business, because he does not understand what he is doing. It is a rule, not merely of municipal law, but of universal law, that contracts of all such persons are utterly void. The Roman law adopted this doctrine as expressed in the maxim. See American Trust & Banking Co. v Boone, 102 Ga 202, 29 SE 182.