At least that's what it looks like. But they could be fighting over a piece of candy. Ask Bill the next time he's got you in a headlock. (Photo taken in London's Euston Railway Station.)
I don't get it. Why is Admiral Ackbar holding a pair of Chinese handcuffs? I hope he doesn't get his fingers stuck in them, 'cuz then he'd be all, "Darn! I've got my fingers stuck in this pair of Chinese handcuffs!"