The occupier owes the ‘common duty of care’ to lawful visitors. The Act gives particular guidance on how to accommodate the different needs of visitors, e.g. being prepared for children to be less careful than adults. The occupier can expect persons exercising a trade to guard against risks incidental to their trade. He will not be liable for the negligence of independent contractors unless negligent in selecting them or checking their work. Account is also taken of all the circumstances, including warnings of dangers to ascertain if they been sufficient to make visitors reasonably safe. The occupier cannot (Unfair Contract Terms Act 1977) use a notice or a contract to exclude liability for negligence leading to personal injury. See OCCUPIERS’ LIABILITY ACT 1984.