Willy is a timid chap. He recently purchased an electric scooter for $1000 and was riding it around the neighbourhood when a neighbour stopped him, and demanded Willy sell the electric scooter to him for $20. The neighbour added that if Willy did not comply, he would suffer a severe beating on the spot. Willy reluctantly sold his new electric scooter to the neighbour for $20. how to advise Willy on the validity of this contract.