In Cox v. Western Supermarkets, Inc., 557 So. 2d 831 (Ala. 1989), the Court discussed the usual evidentiary criteria in slip-and-fall cases: "It is well settled that a storekeeper is under a duty to exercise reasonable care in providing and maintaining reasonably safe premises for the use of his customers. Clayton v. Kroger Co., 455 So. 2d 844 (Ala. 1984). As this Court stated in Clayton, 'The storekeeper is not an insurer of the customer's safety, but is liable for injury only in the event he negligently fails to use reasonable care in maintaining his premises in a reasonably safe condition. The burden rests upon the plaintiff to show that the injury was proximately caused by the negligence of the storekeeper or one of his servants or employees." (557 So. 2d at 831-32.)