My holiday gift to you for your Critical Thinking class: a short video from Slate on something related to inappropriate appeal to authority. Call it perhaps irresponsible appeal to celebrity?
Personally I think it’s important to remember that ad verecundiam originally referred to social status, and not expertise. The point was to direct us toward expertise. Only more recently have we needed more finely grained distinctions, but it seems we may still have things to learn from Locke and Whately.