Originally Posted by
Tableview
The rules are there and are explicit.
No, no, Tableview, you cannot legally write your own rules as you please which override the law. That is a basic principle of UK (and much other) law.
You see many premises with "not responsible for articles" notices. Those are completely unenforceable, no matter how much the management may put up notices, and point to them if you have things stolen. The law says they are responsible and that is that.