From the submitter:
"So I saw this addition to a building which is next to a river, which means if the extension collapsed, you would get very wet. I've never seen anything so precarious on the side of an old mill before!"
Hire a new construction crew...
This option wasn't exactly what I was leaning toward...
The Monty Python foot is not gonna be happy when it tries to step on this.
For when you really want your office to "go green."