Someday, when someone I don't want to deal with comes in to my office, I want to (with a totally serious face) crawl under my desk and scream "Brianna isn't in right now!". And then stay there until they leave. Just to see what would happen.
Actually, along those lines, I'd like to try this method when my children need me to solve an argument. In this case, though, I'd need to actually become invisible for a bit since those minature people are pretty darn persistent.
Due to pesky things such as professionalism and lack of human ability to become invisible, these scenarios will never happen. Oh, well. A girl can dream, right?