Drug Test Question

[BigMexiCANT]

Does anyone know if they can see if it is a female or males piss. I have a job interview and if hired i need to take a drug test i know ill definately fail, so i was gonna have my gf go with me to give me some piss. Will they know it was from a girl??

[BigMexiCANT]

and how long do i have after my friend pisses to give it to them if i keep it like in my sock or between my legs?? like 20 minutes??