Worrying should be a sin. A cardinal one at that. It just makes Satan’s job so much easier. Worrying incites panicking. It’s the difference between a minor incident and a terrible tragedy.
Worrying makes us eventually make the wrong decision, the one that just makes things worse. Panicking happens much more quickly, much more intensely, with much greater consequences. A normal person stuck in an elevator is bored. A worrier in the same elevator would become annoying, asking useless questions while pointing out useless facts. The buttons (obviously) don’t work, the car is (obviously) not moving, and constantly asking the emergency line attendant how much longer is (obviously) not going to expedite a rescue. A panicker will ensure that there will be (unnecessary) bodily injuries and (unnecessary) loss of blood. A normal person would end up with an interesting story to tell, a worrier would end up ruining that interesting story with unnecessary obvious facts that had nothing to do with the rescue. A panicker can’t remember the story at all and wonder’s why he’s banned from the building.
A thinker will notice when the bank robbers aren’t paying attention to the back doors whenever they get excited. A worrier will spook the robbers and make them more vigilant, excited, and careless. A panicker will get the robbers freaked and hostages killed before the SWAT team even arrives.