The far end of the tunnel happens to be blocked by a huge landslide. A railway worker sees the train Lorentz contracted so it easily fits inside the tunnel. Spiteful from having been sacked, the railway worker triggers an explosion at the open end at an instant when the train is inside the tunnel. The explosion causes another huge landslide which traps the train inside. But the train is either trapped or it is not.
Quasars are exceptionally bright objects located at the farthest reaches of the universe.
They are sometimes observed to eject luminous matter. In quite a few cases, the rate of increase of the angular separation of ejected matter and quasar, when combined with the assumed large distance to the quasar, makes it seem as though the matter is ejected at a speed faster than c . Let the matter be ejected with speed v at an angle to the line of sight. A Zen master is accosted by bandits on a mountain road. One of the bandits fires an arrow of proper length 80 cm at the Zen master's head.