A lady in New Mexico received a yogurt sample from her local grocer. She recognized the flavor: semen. She spat the yogurt out and called the cops. Forensic evidence later revealed sperm cells in the lady's yogurt.
This has been your daily reminder that human sexuality is occasionally vile. May "semen-tainted yogurt sample" go down in history as the grossest phrase to grace a headline on February 7, 2010. [TSG, image of non-tainted yogurt via Flickr]