Have you already been to court for this matter once? Im assuming you did and got some sort of deferment or under advisement plea that allowed you to be on a probationary status, take drug tests, and assuming that you pass you have the chance to have it expunged from your record? This depends alot on your county. A friend of mine was busted on a college campus with marijuana seeds and had a year of drug screenings, while I know that counties bordering that one that are larger and less bum-fuck nowhere dont administer drug tests for a possession (mostly because they're cheap and handle alot of drug charges I assume). Chances are if you were on probation for those charges with a likely-hood of having it expunged you may be having a poss. charge on record due to the drug test mishap. To some that's not a big deal, but if you want to work for the government (Id advise against it) it could be. Then again, they might still send your test into a gc to see, it comes up negative, and you have to give a damn good reason why you pissed everywhere. ( You were nervous because of the gravity of the situation even though you were clean, missed, pissed on the floor and felt so frickin embarassed and disgusted about it you couldnt stop shaking). As I say all of this depends on your judge and the harshness of the penalties in your county. Chances are you wont go to jail, but may end up in a rehab or on tests for a buck-as$ long time. Your not in jail, so I say dont worry bout it too much, and roll with the punches. However if there has ever been a time in your life to go ahead and give up pot for a while... This Is It!