You know, about doped contestors...
I used to play together (music) with a bodybuilder. Say what you want about them, but they do know a heck of a lot about the human body, food and dope
He told me that any sportsman or woman who knew what they where doing (and most do) could calculate on the hour when any illegal substances had left their body and how long after that the effect from them started to degrade.
I, for one, believe him. I think that most of those who get caught in doping tests have just miscalculated the time for the substances to disapear. I also believe that just about every world class athlete experiment with one substance or another to performe better. It's just a matter of not getting caught.
So don't yell to much on those who get caught, they just calculated wrong.