Contract Law and case Law?

[modraed]

If a person pays for a ticket to enter a car park and progresses to enter the car park, but said person is unable to park due to a brick falling through the windscreen and causing personal injury, is there a contract in place? is the contract terminated? what are the elements of the contract in question? (consideration, formation, acceptence, agreement)

If there are two signs that have written on them that the car park can be used at your own risk, are these just to limit liability, or do they hold some ground?

Optional: do you know any cases like this?

[fenwick]

law