David is a widower, lived alone in a house with a large garden. One day, he noticed the plants in jmhis garden needed trimming. He remembered that Robert, a 17 year old out-of school youth, had contacted hinm in church the other day looking for work. He contacted Robert who immediately attended to David's garden and finished the job in 3days. Evaluate the contract in relation to the law of employement. (10mks)