And you know you've just been told by scientists that that comet is racing toward the Earth and it's going to kill everybody and everything in a big fiery storm.
The Battle of the Somme followed. Britain lost sixty thousand men on the first day. By the time the battle was over, losses for both sides totaled more than a million.
The final throes of death come when the muscle cells have run out of energy and cannot stop calcium flooding into them, followed by a brief fit and then a rigor mortis-like rigidity of the muscles before death occurs.