An old retired sailor puts on his old uniform and heads to the docks once more for old times' sake. He engages a prostitute 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 prostitute replies,"Well old sailor, you're doing about 3 knots."

"Three knots?" he asks. "What the hell's that supposed to mean?"


She replies, "You're knot hard, you're knot in, and you're knot getting your money back