Oh, I thought it was in his food or something. WTH? In a public place like an outdoor playground(especially in big metropolitan area like South Side Chicago), you got to keep a CLOSE eye on little kids. They will put ANYTHING in their mouth. When my kids were small I refused to allow them in those 'ball pits'. Who knows what kind of nastiness is at the bottom - fossilized french fries, pee?
While disgusting, I question the validity of a lawsuit, sounds like she had a played a part in the negligence by not being more aware of what her kids were picking up. Ewwww.