Dude that really sucks I'm sorry man. Do you puff in the house? Now I'm all second guessing myself.
Fortunately my work doesn't test unless you get into a work related accident then bam go to the test center right away. There is less of that now. However if you're doing any DOT work like driving a commercial vehicle, or in health care, then there's still testing but it's become a gray area. My HR dept has discussed it a bit with the managers a couple years ago but it kind of fell by the wayside.
I used to have a device years ago that had synthetic urine with a pouch, drain tube and 9v battery pack to keep it warm. Worked for everyone that borrowed it too. If I heard buzz about someone being random tested, I'd wear the device. Every other day I kept a vial of "Urine Luck" on me to dope the sample in case. It had a 75% success rate, my gf at the time failed on it.
Point of all this is I believe the last time I checked into the device, there was a different manufacturer who also made a prosthetic dick in different colors as an attachment for those times you get a creeper watching over your shoulder.