Just the thought of looking over the edge of something like a building elicits a fear response in me.

Panic. Fear. Irrational, even.

ETA - I’ve flat out told my employers - if you send me on anything beyond two floors to chase roof drains/vents (I’m a plumber) Iwill turn in my keys and shove off. This is something I am firmly non negotiable on and have quit over, in the past.