A McDonald's Twitter campaign designed to spread good news was hijacked by unhappy eaters.
McDonald's sent out two tweets with the hashtag #McDStories to highlight the "hard-working people" who help to produce its meals and promote the chain's use of fresh produce.
Critics fired back with abusive tweets, incorporating the hashtag, describing their dining horror stories. They accused the company of making customers sick, serving pig meat from gestation crates and offering up a burger containing a finger nail.