“Persons while in a state of absolute drunkenness, and consequently deprived of the exercise of reason, cannot oblige themselves; but a lesser degree of drunkenness, which only darkens reason, has not the effect of annulling the contract.” See Stair, July 29, 1672, Ld. Hatton. So Erskine in his Instit. p. 822, says, “An obligation granted by a person in a state of absolute and total drunkenness, is ineffectual, because the granter is incapable of consent.” incapable of consent.”