it strikes me reading this thread that most pilots seem to feel the same way about edges, heights, ( except in a plane ) ridges and ledges...or is that ( apart from those who are afraid of flying ) just normal..
i've been flying thirty something years...and resisted attempts by others ( both istrructing and examining ) to kill me
..but just reading about the ridges and ledges in this thread gives me the willies...
..
mind you i can tolerate ladders up to two stories high...
..but only just about..
the dean.