"Put down that wrench!"

I await the accident report for the door on that Eurostar with interest. The RAIB recently completed their second (that I know of) investigation of a modern "plug" door opening while a train was moving. In both those cases a serious technical fault was involved, as well as poor decision making, but neither incident resulted in any injuries. The first case is particularly interesting because the RAIB reviewed CCTV footage which shows passengers noticing that a door is open on a train travelling at 100mph but none of them pull the emergency stop. In the second case the faulty door opened while a guard (with a guard's key) was messing with it, a perhaps less surprising outcome (although still pretty surprising for the guard, apparently).