General Liability Insurance
A property example can be found in the car rental business. Many car rental companies have an excess limit of X amount of money. This limit is the maximum the customer has to pay if there is any loss or damage to the vehicle. The customer has a duty of car to that vehicle. On the other hand, the customer can pay to take out insurance at a premium to cover any loss or damage they may suffer in the event of an accident whereby the company have the duty to cover any loss or damage they may suffer in a physical sense.