Consider the following problems:
(a) Roger gets into difficulties while swimming in the sea at Blackpool. He sees Terry on the beach and shouts “Help! I’m drowning! Save me at any price!” Terry plunges into the sea and rescues Roger who, in gratitude, promises to pay him £500, but then fails to pay him.
Advise Terry.
(b) Ken, who is about to go on holiday, is worried about burglars. He promises Fred, his local community policeman, £200 if he will keep an eye on his house while he is away. Fred duly does so, and Ken’s house is not burgled, but on his return Ken refuses to pay Fred.
Advise Fred.
(c) Uncle John promises his nephew Ted that if he and his girlfriend will paint his house while he is away on his summer holiday he will pay them £2,000. Ted and his girlfriend Mary paint the house, but when Uncle John returns from holiday and hears that Ted has fallen out with Mary he pays Ted only £1,000 and refuses to pay anything to Mary.
Advise Ted and Mary.
d) Michael enters into a contract with Nigel, a plumber, to have his bathroom refitted. The contract stipulates that Nigel is to receive an “all-inclusive” price of £7,000 for the work. When the work is half finished, Nigel informs Michael that he will be unable to complete the work for £7,000 because the price of materials has risen and he will need an additional £2,000 in order to finish the job. Michael, who is expecting important guests, agrees to pay the additional £2,000 but, when Nigel has completed the work, he pays £7,000 and refuses to pay any more.
Advise Nigel.