Peter, an old retired sailor, puts on his old uniform and heads
for the docks once more, for old times’ sake and some hot sex.
He engages a lovely provider and takes her up to a room.
He's soon going at it as well as he can for a guy his age,
but needing some reassurance, he asks, 'How am I doing?'
The provider replies, 'Well Peter, ya old sailor, you're
doing about three knots.'
'Three knots?' he asks. ' What's that supposed to mean?'
She says, 'You're knot hard,
you're knot in,
and you're knot getting your money back.'