You entered into a contract to purchase a boat and it won’t…

 You entered into a contract to purchase a boat and it won’t crank. Your best friend got really angry and decided to sue the seller on your behalf because they wanted to ride in the boat all summer. What does “privity of contract” say about their ability to sue?

 If you agreed to purchase your friend’s car, made a down pa…

 If you agreed to purchase your friend’s car, made a down payment of $500 and agreed to pay the rest on Friday when it is delivered to you. But the original owner wrecks the car and it is totaled in an accident on the way to deliver it to you. Which concept says that you are no longer obligated to purchase the car and your down payment should be refunded?