Mason wanted to buy a motorcycle to drive up and down the coast.He found one for sale on Craig's List and bought it based on the seller's statement that the motorcycle had never been in an accident. Just after he handed a check for the full price of the bike to the seller, Mason took the bike to an to an auto shop to get it checked out.The technician showed Mason evidence that the bike had been in a serious accident.Mason issued a stop payment on the check and called the seller wanting to return the motorcycle.

Upset with the situation with the motorcycle, Mason decided to rent a convertible and drive down the coast.Mason provided his bank with a written stop payment on his rent check because he needed that money to pay for convertible rental and for food and lodging during his trip.Mason's bank mistakenly paid the rent check even though his stop payment had been timely.

What would happen if the motorcycle seller sued Mason demanding payment of the check for the motorcycle?What would happen if Mason sued his bank for paying over the stop payment he issued?