In Stefanovich v. Iowa National Mutual Insurance Co., 86 Wis. 2d 161, 271 N.W.2d 867 (1978), the supreme court explained: "The Wisconsin safe-place statute provides that it is an employer's duty to provide safe employment, premises and equipment for the protection of his employees and frequenters. This court has held that the safe-place statute does not make the employer an insurer of the safety of a frequenter on the premises. Rather, the statute deals with unsafe conditions of the employer's premises and not with negligent or inadvertent acts of employees or activities conducted on the premises." (Id. at 166.)