Question Author
Thanks for the replies, ( hc4316 Your wife will need to show that the mess had been on the floor long enough for a staff member to be aware of it and take action but failed to do so - in other words she needs to show the staff were negligent. If a witness had come forward and said that she'd seen the mess and informed a staff member 10 minutes earlier that would be enough. )
Impossible for my wife to show the mess had been on the floor long enough she had just entered the store.1 minute ,10minutes nobody knows or cares how long it was there,it will be the same old rule where theirs money involve people will argue till the cows come home. thanks again for all your answers