There have been instances where a tech has tried to fail a someone by smelling the pee, yes smelling. They will say that it doesn't smell like pee, so it is not. I have not heard of this happening often, but I do believe that you can fight that. I believe that they have to have a list posted of what makes a test failable (real word?) and if smell is not on it, then they can't use that as a reason to fail you. I have also heard of people bringing a straw in to blow some bubbles in it to make it look more real.

Quick fix is the only thing that I use and I don't know of anything better out there, so if anyone has any suggestions....