A Long time ago a (Southern Airlines?) DC-9 F/O slid off the runway forgetting to power the rudder and brakes IIRC, forgot to depressurize the cabin (open the outflow valves) for the evac, nobody could get out.... so he took the crashaxe and tried to evac by taking a herculean swing at one of the windscreens.
It bounced and nailed him right in the forehead. That's were I lost faith in some of the on board survival equipment...
It was worse than that... the way I heard it, they lost a generator, disconnected the wrong CSD, then made a battery-only approach in which they spotted the wrong runway, which was quite a bit too short.....