drug test help

Alright my parents are drug testing for the next couple of months untill college. I didnt smoke for a while the a put some clean urine in every bathroom in my house. It's one of those at home drug tests from walgreens. My only problem is that there is a temp strip, how can i quickly heat up my urine without making noise, or make the strip give a false reading, thanks.

saposedly if you drink vinegar it wont show any signs of drugs my buddy use to do it but i dno if id wana cuz vinegar would be nasty to drink but if ur that worried bout it i would if it works i dno for sure tho