BB-8 bows to Princes William and Harry, and all they did was laugh at him

BB-8, well-mannered, respectful astromech droid, knows the protocol of a royal greeting when such an occasion arises.
Pity two certain princes didn't play ball.
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At the premiere of Star Wars: The Last Jedi at London's Royal Albert Hall on Tuesday night, Princes Harry and William were in attendance as the event was hosted in aid of The Royal Foundation of The Duke and Duchess of Cambridge.Prince William and Prince Harry arrive at