CHICAGO–In a blunder being attributed to "clerical oversight," the Chicago ad agency of Meacham & Braun accidentally kept the résumé of recent University of Illinois graduate Chris DiMaio on file Monday. "We regret the inadvertent fulfillment of our promise to Mr. DiMaio to retain his résumé for future reference should a position that suits him become available at Meacham & Braun," said agency director Thomas Graydon. "As a result of this error, we are investigating our résumé-processing system and are confident that future résumés remitted to us, with the exception of those few that impress us, will be disposed of surreptitiously while we pacify the applicant with platitudes."