A Nightmarish Evening

I have had a horrible evening today. I went out early in the afternoon to buy a gift for my niece who is turning 16 today, and just for once I thought I would buy some girly stuff for her. I asked the lady at the counter where I could find that sort of thingy, and I was taken to one end of the store. She gave me a beautifully wrapped box and commended the product to me : 'This is the latest in girly stuff'. And on top of it was written : 'Because you have earned it'. Yes, I had the dough with me, and I had earned it too. So I bought it.

I came home with it and started opening it. Some bits of styrofoam came out. And more. And more. Until I reached the bottom. There was nothing in the box but styrofoam. Except. Except a piece of paper which said : 'Because you have just bought it'.