can you contaminate a drug test?

My mom said that she might drug test me soon, I doubt she will but I'd rather be safe than sorry. She has the kit in the kitchen cabin with the cup and all. Is there anything I can do to contaminate the cup or does that not work?

 

Ya the best way to pass a drug test is to pee in the cup then swish the urine around in your mouth then spit it back in the cup! Works every time!!!!

 

You can try bleach but strangely enough it did nto work for my friend

 

get a juice box of apple juice..and hide it in a pocket of your pants or whatever.. fill the cup just a little under full with apple juice.. then piss a teeny bit in there to fill the cup and get the piss odour in the cup.

the THC concentration is going to be so miniscule, that the strip or w/e it is wont detect it..

PS: just make sure the test doesnt test if your piss is genuine.. most of them dont.. only really expensive multi-drug tests can do that..

i guess your mom only bought some cheap kit that does the job and she will think that these tests are unbeatable.