Can you show me on this huge overhead projector with the ergonomically-friendly but bizarrely shaped mouse that you've never encountered before how you could create a pivot table in Microsoft Excel 2003. Pay no attention to the breathing on the back of your neck. Also make no motions toward using the laptop trackpad or the three interviewers will scream, "You can use the mouse!" at you as if it never occured to you to use the mouse.
When you do, in fact, create the pivot table using the half-a-bowling ball shaped mouse, be prepared to discuss how using the trackpad on the laptop would have been an ergonomical distaster and using the the mouse that may have been bigger than the actual laptop itself was infinitely better. Also be prepared for grudging admiration on your pivot table.
(I may be paraphrasing a bit)