If strangers had begun pounding on their door, they might have reacted a little more quickly. They had always speculated as to what they might do if the virus project led to a police raid. Most of that discussion had been in the same vein as "What if Xiamen got taken over by zombies?" Because the odds that the PSB would trouble itself over the activities of a nest of virus writers were not much higher than those of a zombie plague. But they had talked through it anyway and agreed that departing via the building’s main stairway was out of the question. The cops, or the zombies, would be there in force. More important, it was not nearly clever or cool enough; it was lacking in hacker flair.