In Illinois Fruit & Produce Corp. (1976) 226 NLRB 137, two employees were discharged for leaving work at the end of their shift but without securing permission to do so. A supervisor gave testimony favorable to the employees at a grievance hearing, contrary to the instructions given him by management, and was terminated. The NLRB affirmed the decision of the administrative law judge finding that the employer violated section 8(a)(1) of the NLRA by discharging the supervisor.