I am very shortsighted. When I was about twenty I went scuba-diving in the Red Sea. I didn't have my glasses with me and when I came out of the water I couldn't remember where my family had placed itself on the beach. I was wandering up and down the beach for half an hour, getting into more and more of a panic, until I finally found them.
The only time I have genuinely screamed with fear was because of a cat; I was leaning down to look into a tiny, dark cave and it suddenly came scittering out straight at my face, more scared of my than I was of it.
I am fascinated with caves; I loved going down show caves and old mines when I was younger and a couple of years ago I got to go on an amateur caving session in Cheddar Gorge; it was exhausting but really awesome!