Three male dogs are on a bench. A Bulldog, a Black Labrador and a Staffy. All of a sudden an attractive border collie comes up to them.
"Any of you three boys can have me if you say an interesting sentence containing the words 'Liver' and 'Cheese'".
The Bulldog goes first.
"I like liver and cheese"
The Border Collie isn't impressed.
The Black Labrador has a go.
"I hate liver and cheese"
The border collie is still not impressed.
Then the Staffy says
"Liver alone, cheese mine"