With a then tiny child and digs in South London, we weren't able to be on site as much as we would have liked. Luckily the neighbour's cat, Whiskerdoo, was on hand to keep an eye on the work.
When only the
crappy outhouse had been demolished, she inspected the old drainage
I'd rip that out if I were you.
She was a bit disappointed to loose her sun roof and moped around the space where the outhouse was for a while.
Of course, as soon as the new concrete floor was laid she went and sat right on it - important to stake her claim. And what eyes!
She was in her element when the scaffold went up.