Erin Carr found MRSA at a McDonald's playground.  Trying to get something done about it has gotten her banned from all her hometown McDonald's.

She's a mother of four, a college instructor with a doctorate and she's spent almost $5,000 getting McDonald's playgrounds tested as she travels the country.

Finding MRSA, E.coli and more at these locations she contacted McDonald's and didn't get anywhere.  Nothing changed.

She turned up the heat and now McDonald's has turned her away.  They sent her a letter telling her if she shows up at any of her hometown McDonald's she'll be charged with criminal trespassing.

That's one way to clean up the mess.