A couple take on an 18-year-old girl as a lodger. She asked if she could
have a bath but the woman of the house told her they didn't have a bath but
she could use a tin bath in front of the fire....... 
 
"Monday's the best night, when my husband goes out to darts," she said.. So
the girl agreed to have a bath the following Monday.... 
 
After her husband had gone to the pub for his darts match, the woman filled
the bath and watched as the girl got undressed. She was surprised to see
that the lass didn't have any pubic hair, and told her husband when he came
home. He didn't believe her, so she said, "Next week I'll leave a gap in the
curtains so that you can see for yourself.." 
 
The following Monday, while the girl again got undressed, the wife asked,
"Do you shave?"
 
"No," replied the girl. "I've just never grown any hairs down there. Do you
have hairs?"
 
"Oh, yes," said the woman, and she showed off her hairy muff. 
 
When the girl went to bed the husband came in, and the wife asked, "Did you
see it?"
 
"Yes," he said, "but why the hell did you have to show her yours."
 
"Why not?" she said. "You've seen it before." 
 
"I know," he said, "but the darts team hadn't!!"