By the way, how far in advance did you know about this? If you knew awhile back and smoked this weekend anyways you're an asshole. I know a bunch of niggas caught up in the system who can't (won't) get out because they keep giving dirty urines
Usually probation lets you know a good amount of time in advance though, so you won't fail. I've been on one type of probation or another for 6 years and never even had to give a urine, cuz I have no drug or alcohol related charges *knock on wood*
When I was on home confinement I had to give urine sometimes, and that shit sucked. Completely ranom (like they could come to your house at 4 AM if they wanted) and they'd stay in the room with you. I have a notoriously shy bladder, so sometimes it would take me fucking HOURS and gallons of water to actually piss.