While working on some holiday cards for my boss. I sent the latest versions and promptly got an email back telling me they were approved and to purcahse the images for them. I purchased the images and sent the final versions to be posted. At which point my boss asked me why I had used a certain photo.
I responded, "That is the same photo that I used in the version I had sent you to approve."
His response, "Oh yeah, I approved them without looking at them."
I had to buy all new images.