I am reminded of Shroedinger's Cat that is only "probably alive or dead" because it is connected to a lethal device that kills if and only if a sub-atomic particle travels to a certain position or is emitted at a certain time, which quantum events have only a probability of occurring. I'm an English major, so let me speak plainly: I set things up so that two rays of light hit a balloon that explodes if and only if they hit it simultaneously--one ray before the other does not do the trick. I test the apparatus over and over. It works. No problem there. An observer passing by at a substantial fraction of the speed of light will not see any balloons exploding because the light rays do not reach the balloons simulaneously--or else he does see the balloons explode, since after all they do, and concludes that just one light ray is sufficient to explode a balloon in contravention to the laws of physics.