The vast majority of shopping carts have dangerous bacteria on them.
Gerbar and his team swabbed 85 carts in four different states to yield their results: 72 percent of carts tested positive for fecal matter and half were laced with E.coli. As you might imagine, much of the bacteria was found on the carts' handles.
Something to think about next time you're handling produce at Whole Foods.
photo (cc) via Flickr user sampitech