If i have a rod of length L at rest . And there is a hole up ahead that is L/2 and I move the rod at a velocity which will contract it to half its rest length. Will the rod fall into the grate? Well I think that from the rods point of view its still its rest length and it would appear that the hole is moving at it and the hole would appear length contracted and so the rod would not fall into the hole. Is this correct? But then I guess we could say that the hole is stationary and the rod is moving at it and the the rod would appear to be length contracted from the holes point of view.