During idle moments, when nobody is looking, we professors of the Dark Arts are known to practice various techniques. Just for fun, and to stay sharp, you understand. This was during the wait for the USC Presidential inauguration march to begin a couple of weeks ago. (See posts here and here.) As you can see, Nick Warner (right) and I (middle) are engaged in trying different approaches to a remote influence technique as Krzysztof Pilch (left) looks on at the results, somewhat amused. (Click for slightly larger view.)
All in good fun.
Some Related Asymptotia Posts (not exhaustive):