The boob-flashing scene in the pilot episode
was kinda fun... That desk clerk sure got bugeyed:)
That and Bones taking down the homeland security guy and pulling a human skull out of her bag like it's no big deal, all within the first five minutes of the series made me fall in love with it.
"Phalanges, phalanges, phalanges! Dancing phalanges!" - Dr. Bones