Sunjai, Who Is Functionally Illiterate, Asks Her Friend Hahna to Read

Sunjai, who is functionally illiterate, asks her friend Hahna to read a document aloud to her. She is to sign it in order to purchase chinchillas from Patrice to start a breeding farm. Actually it is a deed transferring ownership of Sunjai's farm to Patrice and, unknown to Sunjai, Patrice and Hahna have made a secret agreement to sell the farm and share the proceeds. Since Sunjai did what was reasonable to deal with her own inability to read, she could raise the defence of non est factum to an action by Patrice to get possession of the farm.