They were killed by nitrogen, which kills quickly and painlessly. Todd, of course, manages to pull his man's tooth more quickly and painlessly than Pirelli. Because Dervish is unable to kill his nephew, Grubbs is forced to painlessly kill Bill-E. He does not want Vullion to die painlessly. Al says he tried to do it as painlessly as possible. As the Russians surrounded Berlin, the Goebbels painlessly killed their children and then themselves. The army tells Vera and Roland's family that he died "bravely and painlessly". There are only two solutions; turn her into a Time Lord, or painlessly kill her. The Ancients arrive, having sensed that they were needed, and destroy the couple painlessly. The other children are jubilant because defective children are painlessly destroyed.