523 N.W.2d 193 Pearl J. GURNEY and Richard E. Gurney, Plaintiffs-Appellants, BLUE CROSS BLUE SHIELD UNITED OF WISCONSIN, Involuntary-Plaintiff, v. HERITAGE MUTUAL INSURANCE COMPANY, a Wisconsin insurance corporation, Supply Source, Inc., a Wisconsin corporation f/k/a Lubrication Station, Inc., and Wisconsin Quick Lube, Inc., a Wisconsin corporation d/b/a Jiffy Lube, Defendants-Respondents. Court of Appeals of Wisconsin. […]