In Hollingsworth v. American Fin. Corp., 86 Wis. 2d 172, 184, 271 N.W.2d 872 (1978), the supreme court said: Relief on ... grounds of inadvertence, mistake or excusable neglect requires a showing of two distinct elements: (1) that the judgment was the product of mistake, inadvertence, or excusable neglect; (2) that there is a meritorious defense. If there is no showing of the first, the court need not reach the second. The first question is whether the movant's conduct was excusable under the circumstances. Excusable neglect is "that neglect which might have been the act of a reasonably prudent person under the same circumstances." (86 Wis. 2d at 184-185.)