An update. I had found a note that I had written with the dates on it as she had given them to me, and resolved to show it to her in order to prove my case. During dinner, I tentatively brought it up and handed it to her. Miss Brenda looked at it, handed it back and said that I had simply written it down incorrectly! The little macho man inside me had to peek out and went on a little "hissy fit" telling her how it wasn't my mistake and how unfair she was being - it all slipped out and then rolled out. I knew at once that I was in trouble just by the look on her face. When I finally finished, I knew that she couldn't accept my challenge to her authority. Long story short, the belt was liberally applied to my bottom as the little macho man was taught a tough lesson. After punishment, she informed me that she had already decided to forgive my scheduling error, so my rebellion was all for nothing!