These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
What an Idiot: Locking yourself in a cage isn't actually good strategy to avoid a killer.
Most of what Alana does could qualify. After learning the killer is only after two people on the train, she storms out to confront him (separating from the other target, who has locked himself in a room for safety) loudly proclaiming that "He'll kill everyone on the train!!!" All 50+ people.