It was the 'Mucky Farter silently left her berth' bit that was the give away. A more accurate rendition would be:
Mucky Farter slowly left her berth, billowing clouds of diesel exhaust, leaving a dusting of carbon on nearby boats. Spluttering away, a litre or two of Soltron was poured into the tanks, but the biological equivalent of a corporate waste site was no challenge to a litre of chemicals, and the smoke continued to plume forth for several miles, obliterating much of Plymouth under a dark sun.
The occupants, wet seated, on Haydn's patented water cushions, were wined and dined on black pudding and Northern delicacies such as lamb gonads and sheep brains.
<hr width=100% size=1> I asked an economist for her phone number....and she gave me an estimate