Beans. We love them in soups, salads and salsas. But beans
have one social drawback -- their dramatic effect on human
wind production. Good news. A British plant breeder has developed
fart-free varieties, to the relief of baked bean fans and
their families everywhere. (No more fear of being around
other people!)
(http://garden.blogware.com/blog/_archives/2005/11/10/1378863.html)