Old Toolmaker's tale

[Hedgehog]

bill, an old retired toolmaker, puts on his old work clothes and heads for the
work shop once more, for old times sake.

He meet,s a prostitute and takes her up to a store 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 prostitute replies, 'Well Bill old tool maker, 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.