He wondered if this was a comment on his workmanship and trying to ignore his audience continued his work. Still the comment came, 'Horse piss, horse piss.'
Eventually Paul climbed down and spoke to the old gentleman. He didn't quite know what to expect but the man was an experienced workman, used to working with copper and told him, 'Use horse piss to cure the copper. It turns it green.'
In that way a new roof can be aged quickly to fit in with its surroundings. I don't know whether Paul took the advice – I rather doubt it as he's only usually on nodding terms with horses - but I imagine by now, several years later, that the roof will have weathered naturally, particularly in the salt-laden air of Lulworth.
