After consuming a mind-altering drug, Joe buys some real estate from Sue for $100,000. Joe was completely wrecked when he made the deal, and could not understand what he was doing. Due to the after-effects of the drug, Joe goes into a coma that lasts for one year. As soon as he awakes, Joe tries to disaffirm his contract with Sue. Sue maintains that Joe cannot disaffirm because he has ratified the contract. What should Joe argue in return?