Do you want a bag?

A week ago I bought new shoes. I really needed new ones.
The seam was glued together, as is standard these days, tough it still looks like it is sown together. Anyways, it let loose. So It was damaged, I noticed it the 2nd time I had em on.
Last thursday I went back to the store wearing the shoes. I should have brought em in the box. I needed that to ask for a refund, but I figured to just exchange the shoes with the same kind of shoes in another box.

In the store I got new shoes, excanged them and was on my socks when I took the shoes from the girl behind the counter. She said the memorable words: "Do you want a bag?"

...

Right...