Zee, the lead singer of The ZZ Tops, a pop group, agreed with X for a fee of 15,000 that the group would perform two weeks later at a concert organised by X to celebrate the success of his beloved country in the recent World Cup. The lead guitarist of the group, Wheeze, took some vitamins recommended by his girlfriend to enhance his stamina and energy on the day before the concert. Wheeze decided to take additional tablets as he was feeling lethargic after his short holiday. Due to the overconsumption of vitamins, Wheeze developed low levels of immunity during the concert and as a result was unable to perform properly as he was in a dazed state. Although he started to perform, he was booed off the stage. As a result, X, who had paid 16,000 to rent the venue, had to reimburse 28,000 to dissatisfied fans. Advise X. What difference, if any, would it make to your advice if Wheeze's beer had been laced with some drugs by an unknown third party? Please give advice and explanation using UK law.