Do not disturb Kevin Spacey while he's working.
The "House of Cards" star was performing the one-man-show "Clarence Darrow" at London's Old Vic, when a patron's cell phone suddenly went off, according to a report by the British paper "The Independent."
During a pivotal courtroom speech, the audience member's cell phone's ring tone rang loudly enough for the whole room to hear.
Interrupted, the actor remained in character, turned to the audience and exclaimed, "If you don't answer that, I will!"
Spacey received a round of applause for his improvisational theatrics; like in "House of Cards," his breaking of the fourth wall worked out pretty well.