@P E Dant,
13 Frightening things
1. Looking downward when you're on a high place.
2. Hearing a noise downstairs at night, then having to be brave to investigate.
3. The night. A paralyzing fear that consumed me for 50 years. I recovered, and now I love it.
4. If Earth's sun went Supernova - well, only for a few minutes..
5. Tangled airline when full-suit diving
6. Getting stuck, flashlight stopped working, lost when spelunking alone.
7. Car stalling while on a country lane. (The days of no mobile phones)
8. Waking up in the middle of a moonless night, going out to pee while in the field, in an active war zone - when finished, forgetting which way is back to your sleeping place and which way is toward perimeter and trip wires, claymore mines and booby traps.
9. Getting bogged on an isolated dirt road
10. Walking past a rock formation where legend has it Demons fight in gladiatorial combat for Satan's favour. (I saw a TV documenary on a punk rock band living on a Cornish moor, the nearest pub was about a mile away and they would walk past such a rock. They said it was one thing walking past it in the daylight, sober, on the way to the pub, but a completely different matter walking home in the dark after having had a few.)
11. Walking out on a platform at the Grand Canyon so you can get out past the rim to see the canyon floor below; then realizing the platform is glass and you suddenly feel like you are "floating in mid air". I went straight to my knees and my heart skipped a beat!
12. Seeing a 'rogue' wave rise behind your open boat... it is at such times that one experiences what is known as 'ring twitch'
13. You're playing Tomb Raider, Lara is swimming fast, and you
feel the shark is right behind her, but you can't take the time to look back or she's dead...