Two guys were playing golf and were slowed down by two women playing ahead of them. After a few holes, they decide that they should politely ask the women if they can play ahead of them.
The first guys walks up to the two women, but when he's about midway he stops and runs back to his friend, hiding, ans says: "I can't go talk to them, it's my wife playing with my mistress!"
"Ok, ok, I'll go."
So the second guy goes up to the ladies, but again stops midway and runs back: "Gee, it's a small world.."