Like thousands of people around the world right now, Mark Jackson is peeved at eBay about some purchase gone sour. A Nintendo DS Lite, to be precise. Jackson was so peeved that he sent an email to several U.K. press outlets, copying eBay and demanding a response. This is only notable because Jackson is a high-ranking executive at Hill and Knowlton. And eBay does business with Hill and Knowlton all around the world — but substantially cut its budget in the last month. Here's Jackson's screed — and more about its curious timing.