D.I.Y dont send the wife

Charlie was installing a new door and found that one of the hinges was missing
He asked his wife Mary if she would go to screw fix and pick up a hinge.
Mary agreed to go. While she was waiting for the manager to finish serving a customer, her eye caught a beautiful set of bathroom mixer taps
When the manager was finished, Mary asked him, "How much are the mixer taps?"
The manager replied, "That's a gold plated set and the price is £500.00.
Mary exclaimed, "My goodness, that is a very expensive set of mixer taps. It's certainly out of my price bracket."
She then proceeded to describe the hinge that Charlie had sent her to buy.
The manager said that he had them in stock and went into the storeroom to get one.
From the storeroom the manager yelled. "hey love, do you wanna screw for the hinge?"
Mary paused for a moment and then shouted back, "No, but I will for the taps."