Amy Lawrence and John Delford have both been working for Defense Plants, Inc. for over 20 years. Amy is a supervisor and John is a production worker as well as a union steward for the smallest manufacturing plant. According to employment records, they have performed their respective jobs well over the years and have acted professionally in the past, representing their respective sides properly. Bob Edwards has been an employee only 11 weeks. As of last Tuesday, he joined the union, which he was allowed to do after 10 weeks of employment. Bob's supervisor is Amy Lawrence. Last Wednesday, a day after he joined the union, Bob informed Amy that he was not able to stay late on Wednesdays to complete a clean up job even though Amy reminded him twice. In fact, Amy informed Bob that now that he is a permanent employee and under the union contract, he is required to clean up each Wednesday, once a week, after work hours. Bob has apologized to Amy, but has also advised her that he is not able to do the cleaning because he must leave at 5 p.m. sharp each day to pick up his daughter Telitha from day care. (His wife works evenings.) Following are further details about the case: