Is it really that hard to know which shop you are in?

Why do people try to use PaperPlus gift vouchers at Borders? Did they not notice the trillion signs that announce what store we are? I mean, I can understand trying Westfield (we're not, by the way), but PaperPlus? Whitcoulls? You might as well come in to our store and slap us.

Well actually ok it's not insulting, just confusing as to how people can be so irrevocably retarded.