actree,
If he's really committed to getting over it....
He'll do it.... but you can help.
When I first started climbing, I was a mess.
Mortified. Frozen... didn't understand my gear, nor trust it.
Didn't understand tree mechanics...nor trust it.
I fell out of a pine as a kid. Fooling around and broke the top out of it... landed on my back. Lost my wind.. thought I was gonna die... when the blackout hit....
Woke up and didn't get back into trees until I changed careers in my late 30's.......
Like Northwind wrote.... about the self-knowledge of the problem.. he knew where the problem was and addressed it.
I did the same... I began reading books on tree mechanics, bought OnRope, Fundamentals of tree work, Tree climbers guide, and every other title I could find... Joined Treebuzz... then researched rope, friction hitches, biner construction... YouTubed destruction testing.... then I decided I wanted to learn to splice.
Since understanding my environment aloft and my tools... I've been able to take the adrenaline, elevated heartbeat, heightened senses and knowledge.... and turn them to my advantage in the tree... now it's meditation for me.
Like Orobos said... take him on a rec-climb and go through those steps... but make him aware of the the tree mechanics and effort that goes into making our tools safe for us to use.... Then he'll begin to understand how it all works together....
But only if he's committed to making a go at it.
Bring him to NH.. I'll spend a day with you guys.
I remember how real my fear was... It's only right to help someone else get over theirs.
Peace
PS.. if anyone wants to learn how to splice... there's a spot still open for 'Fids & Fibers' this week!
http://www.facebook.com/pages/Renaissance-Acres-Tree-Care/107475099309399?ref=ts