Here is a link to a story about a retail web site that added a 50% discount when the customer checked out.
The retailer announced the mistaken discount would not be honoured, although this is now turning into a PR disaster. A couple of days earlier Delta Air Lines was mistakenly selling first class return tickets to Hawaii for $98:
Delta said it would honour all purchases--although apparently it was required to do so by federal law.
Best wishes of the season to all RDG members, and may you be lucky in your online shopping during 2014!
Lionel