Marion Jones is the only person I can think of that has actually done this.<p><a href="http:&#x2F;&#x2F;www.cnn.com&#x2F;2007&#x2F;US&#x2F;10&#x2F;05&#x2F;jones.doping&#x2F;index.html?eref=time_us" rel="nofollow">http:&#x2F;&#x2F;www.cnn.com&#x2F;2007&#x2F;US&#x2F;10&#x2F;05&#x2F;jones.doping&#x2F;index.html?ere...</a>