Seven years ago, the Bonnet Corporation redeemed all of Joe Bonnet's stock as a complete termination of interest. At the time, Joe signed a waiver of family attribution rules because his three sons retained all their stock. As part of this arrangement, Joe agreed to notify the IRS if he acquired a forbidden interest in the corporation. Recently, the corporation acquired a contract with a defense contractor to build a machine to produce specialized instruments for jet planes. Joe had been the company's chief engineer prior to his retirement from the company. The sons asked Joe to come back as a consultant for a short period to get this project up and running.