A married couple has been stranded on a deserted island for many years. One day another man washes up on shore. He and the wife become attracted to each other right away, but realize they must be creative if they are to engage in any hanky-panky. The husband, however, is very glad to see the second man there.
“Now we will be able to have three people doing eight hour shifts in the watchtower, rather than two people doing 12-hour shifts.”