Two groups managed to escape a zombie horde at the train station. They ended up at the train, in separate cars. One group was safely tucked at the First Class cabin; the rest had to deal with the zombies in other cars.
Somehow, the second group managed to escape the zombie horde and reached the First Class cabin. Unfortunately, one of those from the first group – who turned out to be a big asshole of a CEO – sowed fear from his companions by telling them that there’s no way that anyone from the second group would come out from the zombie horde uninfected. With the zombies right at their tails, those from the second group had to break the door just to escape.
Through the sacrifices made by some of their companions, the survivors from the second group were able to safely gain access to the First Class cabin. However, Mr Asshole CEO was not done yet. He told this lie to the first group: that the one acting as the leader of the second group was infected, and is turning into a zombie right that very moment. Without even checking if that accusation is true, the rest of group 1 hysterically demanded that those from group 2 be evicted from their cabin and have themselves locked at the vestibule. Group 2 silently complied.
The above story was taken from a zombie movie. I could also be talking about real life.
This was the scene that followed: through the fault of one of their own kind, the First Class cabin got compromised. All of group 1 was devoured by the zombies, while those from group 2 who were safely locked at the vestibule survived the attack.
That was how the scene ended in the movie. Would it end the same way in real life?