David DeVETTER, Appellant, v. PRINCIPAL MUTUAL LIFE INSURANCE CO., f/k/a the Bankers Life, Appellee. No. 91-1039.Supreme Court of Iowa. May 25, 1994. Rehearing Denied June 17, 1994. APPEAL FROM DISTRICT COURT, POLK COUNTY, ARTHUR E. GAMBLE, J. David DeVetter, pro se. Eric F. Turner of Herrick, Langdon Langdon, Des Moines, for appellee. Considered by McGIVERIN, […]