First Principles of Business Law

Question 16

X agrees to pay $500 to Y, a beauty therapist, in exchange for what Y promises to be "the ultimate luxury - three hours of relaxation and beauty therapy that will make you feel as wonderful as you look."  Unfortunately, Y uses a badly prepared hair dye and the over-strong mixture makes X's scalp become red and itchy, a condition which lasts for three hours but then disappears.  A argues that Y breached a term of the contract to use reasonable care and skill and claims damages from Y.  She says that, because of the itch, she was unable to enjoy the beauty session and that she is entitled to be compensated for her disappointment on grounds of breach of contract.  On which case could X rely in support of this claim?