as you enter the zoo there is a sign at the boom gate stating "The owners, management and employees of the zoo do not accept liability or responsibility for any loss or damage of any nature whatsoever caused negligently or otherwise to any person's property whilst on the premises"in a rush you do not notice. Whilst at the zoo the wall collapse as it wasn't built property and you get harmed. whilst you are carried away your wallet gets stollen and cctv footage shows the thief as the zoo employee. What are your chances of success in an action against management for the physical damages and the replacing of your phone