The prisoners are exhausted and movement on their crosses is now minimal. We are behind schedule as the crosses are fully occupied and the watching crowd begins to dwindle, much to the ire of the crucifixion vendors. The next four condemned ones are stripped and lined up and sadistic spectators taunt and jeer, throw small stones at them, the genitalia being of course the prime targets. "Take down those first ones, crucify these four now they shout."
Our centurion Marcus has a clever idea, he asks for volunteers. Gingerly he pulls out the wooden stipes, instructs the prisoners to arch up on the beams if they know what is good for them. Then on come the knives, just a few inches under the scrotums of the stretched prisoners. And it is the final stretch for them, bets are taken on who lasts longest, and of course bids are make for the final souvenirs.
The next four up are made to watch, guards put spears to the genitalia to keep them in line. One falls and faints, the others vomit. A long day awaits them.