Two people meet in the middle of a bridge. They start talking. One's dressed in blue, the other in red. They finish their conversation amicably, and walk off in opposite directions, each scratching her head in confusion. "So, how was it," is the question they face upon reaching their compatriots. "Fine," they say. "But those people have a hard time with reality." Suddenly a speedboat shoots beneath the bridge. Its co-pilot holding a sign that reads: Jump, jump, we'll save you!