Elizabeth is on holiday in France. She telephones her friend Sophia and asks her if she will visit her house each day to make sure that it is still secure and feed her horse whilst she is away. Sophia agrees. Elizabeth is away for three weeks and, in addition to keeping an eye on the house and feeding the horse, Sophia spends time mowing Elizabeth's lawn, weeding her garden and cleaning the windows of the house. Elizabeth returns from holiday and is so grateful that she promises to pay Sophia RM200 for all the work she has done. Analyse Elizabeth's legal liability to pay Sophia the money offered for the work done by Sophia.