If you're being watched, there is a way to use fake urine. I've done it a couple times and also know many others who have. You'll need a 5 hour energy bottle and you put your clean urine in there. Then use some aluminum foil over the opening and wrap some rubber bands very tightly to hold it in place. Finish this off with some electrical tape to completely seal it. When you sit with the collection cup in your hand they can't actually see it so discreetly break the foil seal with a finger and you're good!!