A man walks into a chemists and wanders up and down the aisles.
The sales girl notices him and asks him if she can help him.
He answers that he is looking for a box of tampons for his wife. She directs him down the correct aisle.
A few minutes later, he deposits a huge bag of cotton wool balls and a ball of string on the counter.
She says, confused, "Sir, I thought you were looking for some tampons for your wife?
He answers, "You see, it's like this. Yesterday, I sent my wife to the shop to get me a packet of cigarettes, and she came back with a tin of tobacco and some rolling papers; cause it's sooooooooooo much cheaper.
So, I figure if I have to roll my own 'cos it's cheaper... so does she."