Yes. I heard a good example of it recently in a baseball game between the Yankees and Marlins when the crowd stood and started cheering during a key part of the game. He literally said, "The crowd is on their feet. They're cheering either for the Yankees or the Marlins." Now the point he was hoping to convey was that there appeared to be nearly as many Yankee fans present as Marlin fans. But for whom else would the crowd be cheering?