For the reasons stated below, we reverse and remand for further proceedings.
I
This case began more than ten years ago. On February 5, 1988, Robinson filed a complaint alleging that George, Timothy McDonald, and Canam Financial Group, Ltd. had defrauded Robinson out of nearly $1,000,000 through violations of the Organized Crime Control Act of 1970 (RICO), 18 U.S.C. §§ 1961-68, Section 12 of the Securities Act of 1988,15 U.S.C. § *111,* and Section 10 of the Securities Exchange Act of 1984,15 U.S.C. § 78j(b) and Rule 10b-5, 17 C.F.R. § 240.10b-5. Robinson also alleged supplemental state law claims for rescission and fraud. The court issued a summons for George with a service address of 400 E. Randolph Street, Suite 1622, Chicago, Illinois.
No one served George on Randolph Street, but Robinson got wind of the fact that he could be found in Canada, and so it took steps to locate him there. On June 29, 1988, Robinson filed a return of service indicating that Canadian process server Jim Bangs had served George. (We note that this was not a timely filing under Fed.R.Civ.P. 4(g),which requires that proof of service must be made “promptly” and “in any event within the time during which the person served must respond to the process.” According to Bangs’s affidavit, he accomplished service on May 12, 1988. The summons states that George had to respond within 20 days, which would have been June 1, 1988, as provided by Fed.R.Civ.P. 6. Proof of service, however, was not filed with the court until June 29, 1988, and was docketed June 30. Because we have decided this case on other grounds, we need not resolve whether George may complain about this defect now.) The return of service was supported by an affidavit from Bangs indicating that service of process had been made by leaving the summons and complaint with an individual residing at George’s abode in Calgary, in the Canadian province of Alberta.
The details of that alleged service reveal why George has brought the present action. Bangs reported that he first determined that George and McDonald resided in apartment 806 of a condominium development in Calgary. On May 4, 1988, he observed that George’s automobile was parked in the basement of the condominium budding. By speaking with the condominium development management, Bangs confirmed that George lived in apartment 806. Bangs then arranged with the inspection service coordinator of the development’s property management company to serve a notice to inspect McDonald and George’s apartment. On the morning of May 12, 1988, Bangs and the inspector went to the apartment and the inspector knocked on the door. When there was no answer, the inspector opened the door to the apartment and entered to conduct his inspection. Bangs remained in the hallway.
Bangs then saw a man whom the inspector identified as one of the apartment’s tenants. Although it is clear that Bangs remained in the hallway and did not enter the apartment, it is unclear from the affidavit if the man emerged from the apartment, was about to enter the apartment, or merely passed Bangs in the hallway. When Bangs asked the man if he was McDonald or George, the man responded he was neither. Bangs nonetheless thought that the man fit McDonald’s physical description; he consequently served the man with a copy of the summons. The inspector told Bangs that after the man was served he became engrossed in the contents of the summons, flipping from page to page. The affidavit closes with Bangs’s statement that he believes that the summons and complaint were brought to George’s attention.
On July 25, 1988, the district court entered a minute order of default judgment in favor of Robinson and scheduled a prove-up hearing for August 4, 1988. Af