Well if you're really that desperate, well, drinking lots of water helps, but if you are lucky, you might know someone in the armed forces or hospitals with those pills that clear your system in a day or so (I don't really know the name of that pill, since even if i get caught no one cares) or there is also something that you can drink to cheat the system n e ways, do some research, if you made this a topic, then you are not trying hard :/