In the summer I was stuck on the tube with DCs when a signal failure meant the entire line broke down. Eventually the signal broke down, lights and speaker turned off and eventually they closed the station because they couldn't move the trains and signal wasn't restored until the next day. THANKFULLY we were above ground so they just opened the doors because it was baking hot and DCs had started screaming for water after they'd finished their water bottles.
I never stopped thinking about what would have happened if we had been underground...what would have happened, would we have been stuck underground in the dark and how would we have gotten out? The train was stuck for two hours before they shut the station and even after that the signal failure meant the train couldn't move. It has given me a phobia of being on the tube and if the train stops in a tunnel even for 30 seconds I start feeling pure panic.
We also got stuck in an elevator last year and I got over it to an extent but I can't use elevators that seem a bit creaky or are taking a long time because I feel that they are going to break down and get stuck.
Does anyone else have this fear and how do you deal with it? It's necessary for us to use the tube/elevator sometimes but I just get so panicky. I spoke to family and they told me to be prepared, so now I always carry extra water and a torch, but it's just the feeling of being physically trapped that now panics me.