I knew I was going to freak out when I clicked on this video of a man stuck in The Tube, a long thin passage in the Lost Johns’ Cave—a large cave system on Leck Fell, Lancashire, England—as the water pours in and he panics. Fortunately, he escaped at the end.
https://www.youtube.com/watch?v=3oh3da-E6rA
Note to self: Don’t play videos of people stuck in caves having panic attacks when you are claustrophobic.