Zak,
You make a very good point, and one that I think many people seldom think about.....it might help to know what you can and can't accomplish while hanging from yuor safety belt or harness........
I know you belt guys will be in for a big surprise.
It might help identify a particular style of harness that just won't work for you, and show you what will need to be done if you are left dangling.

Just don't do it alone.
Always keep your safety line at a height that will not allow your knees to fall below the level of the platform. That's the biggie.