the one time i have had to take the whiz quiz since i started smoking, i quit for 40 days prior and drank a lot of cranberry and also took B12 and Niacin, but i realize not everyone is that extreme.

if they are watching you piss, its going to be tough to pull off without one of those things that you purchase with a hose that clips to your dick. if they don't watch you can use whatever you want. i suggest a condom full of urine under your nuts. that way you can just poke a small hole and it will come right out. just whatever you do don't throw the condom in the water by mistake.

if you use another container, make sure you don't fumble around and drop it or something. my mom does drug tests and has told me stories of idiots coming in there with bottles of piss in their coats and like fucking up and dropping them right in front of her and she fails them. but that's meth heads in my small town.

just know that if the nurse finds something, they have a job to do and will most likely not fuck around with trying to lie for you or being like "oh that's OK' because its their ass. i'm sure that using someone else's bodily fluid as your own to pass a test is fraud or something.