A couple is lying in bed. It’s the middle of the night and there’s a knock on the door at three in the morning, and the guy gets up out of bed and opens the door. He comes back to bed and his wife says, ‘Who is that?’ And he says, ‘Oh, some stranger who wanted a push. I told him I couldn’t help him.’ She says, ‘What if that was you? What if you needed a push in the middle of the night?’ He says, ‘You’re right. Fine.’ So he gets dressed and he goes out into the darkness and yells, ‘Hey man, are you still there? Do you still need help?’ The guy yells back, ‘Yeah, I do!’ He says, ‘Where are you?’ And he says, ‘I’m over here on the swing.”