Cannabis

Do it right and it's success is guaranteed. I know five people that have passed using this method, including myself. The key is to make sure it's at the right temperature (it has to look like it came out of the human body, which means it should be as close to 98 degrees as possible). Meet that criteria and there is no way they can tell the difference under the microscope. If somebody fails using fake urine, it's usually because they didn't get the temperature right. There are all kinds of kits and instruction manuals online on how to make this happen and help your neighbor pass. If he does it right he should have no problem.