I wasn't afraid the first time I got into one. But I did have to fight some low-level emotional terror creeping up on me once I was inside. It's a tight space,

I wasn't afraid the first time I got into one. But I did have to fight some low-level emotional terror creeping up on me once I was inside. It's a tight space, and the device is noisy. Pretty much designed to trigger these emotions, even though I knew it wasn't dangerous. Second time I almost fell asleep.