See when you take these things you cannot get too diluted that it looks too clear. Its surprising they didn't reject it at the collection site on the spot. That happened to me once. They made me stay there another hour till I could give another one. So I did and it was a little darker, and it passed too and I was cronic at the time.

The wait....its the wait thats just killer..sometimes when you pass you never hear anything at all..