"The Fog"

Twas a foggy night navigating the Straits of Malacca. The Helmsman asks the Boatswains Mate …

“What’s the difference between sailing the straits through the fog and eating pussy?”

Boatswains Mate asks …

“I don’t’ know! What is the difference between the two?”

To which the Helmsman replies …

“When you’re sailing through the fog, you can’t see the asshole in front of you!”