Bob, who has a very cute little puppy, sends you an email asking for your help. He says that he, by accident, deleted the best picture he had of his cute little puppy from a USB memory stick. He also mentioned that he immediately unplugged the memory stick once he noticed that he deleted the picture. He took an image of the stick with DD and attached it to the email.
His last line in the mail is something like: This is really important to me. I need this picture back asap. I will make up to you if you can deliver within 72 hours!