MacGregor, Margaret v. Rutberg, David A.

In the United States Court of Appeals For the Seventh Circuit ____________ No. 06-2829 MARGARET MACGREGOR, Plaintiff-Appellant, v. L. DAVID RUTBERG, Defendant-Appellee. ____________ Appeal from the United States District Court for the Central District of Illinois. No. 06-CV-3018—Jeanne E. Scott, Judge. ____________ ARGUED JANUARY 12, 2007—DECIDED FEBRUARY 27, 2007 ____________ Before POSNER, WOOD, and SYKES, Circuit Judges. POSNER, Circuit Judge. The parties to this diversity suit governed by Illinois law are neurosurgeons. Rutberg testified as an expert witness for a patient of MacGregor’s…