There are two guys out on the course that come up on a couple of ladies playing slow. One of the guys walks up towards the ladies to ask if they can play through.

About halfway there he turns around and comes back and says to his friend, "I can't go up there and talk to them, that is my wife and my mistress."

So his friend replies, "I'll go up and ask them." When he is halfway there he turns around and comes back.

"Small world."