The ship's doctor records a verdict of 'death by misadventure', and returns to his own cabin. The lady is waiting for him in his bed, surrounded by five pound notes, and champagne on ice.
They laugh a lot.
The scene cuts to a police scuba diver (Brian Blessed) emerging from the River Thames (next to London Bridge) clutching a pack of thawed sausages. His cry of "I've got you now!" echoes around the city, and he laughs a lot. The End.