Ross, Ash's next-door neighbour, is illiterate and suffers from severe depression. Ross relies upon Ash for advice and support. Ross wants to sell some land that he owns, and Ash agrees to buy the land from Ross. Ross accepts the first price that Ash offers (without seeking independent legal or financial advice) and Ross signs the contract of sale. Ross's brother Robert has now called Ash to express his concern about the contract price. Can Ross cancel the sale?