http://www.reddit.com/r/Seattle/comments/np99x/anyone_else_seeing_the_awesomeness_at_seatac_this/
Looks like someone got themselves an Air Swimmer for an early Xmas gift.
"So far there has been a remote-controlled, motorized, floating balloon shark prowling the terminal as a pianist plays 'Jaws', a guy dressed up as a toy soldier walking around on stilts, and finally a guy in an astronaut costume on a tall unicycle juggling pins. "
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http://www.nbc.com/parks-and-recreation/exclusives/ron-dancing-animated.gif