I was working the other day, I am not going to say when or who with, as I really don’t want to cause offence but I did find it very amusing in hindsight. I was out with some would be mountaineering instructors and one of them had a bit of a turn at the top of a hill. I ask about underlying conditions and they replied that they had suffered from aniphilactic shock, thinking we’d just had dinner so that might be an option it turned out that it had only occurred after a steep up hill section.
So I figured that he was the only person I have ever met to have a Hill Allergy, and want to become an Instructor, although I did once teach someone on a Single Pitch Award course who was afraid of heights!