Michael …
Been there, done that ONLY my saviour was not toeboards.
On 3-story condo roof in Denver in 1974. A shingle I stepped on pulled loose, I hit the deck on my butt and started my downhill slide. About 2/3rd down the roof I yanked my scratch awl out of my belt holster and managed to slam it into the deck well over an inch. That stopped me and one of the other guys on the ridge threw down a rope. Talk about changing drawers.
That was 43 yrs ago … I was 28 and NEVER forgot that.