Perhaps you remember when certain bars installed those breath-a-lyser machines so you could tell how drunk you were before you drove home.
Now, a similar devise is being looked at in Colorado, only you don't breath into it, you pee on it. Yep, it's called the interactive urinal communicator and it's looks like a normal urinal cake only it talks back to you.
Users are encouraged to keep a constant stream of pee flowing onto the devise while it tells you to stay stafe, don't drink too much, don't go home with any ugly people...(just kidding) and the amazing part is that it somehow reads your blood alcohol level thru your urine and if you're legally drunk, it urges you not to drive.
Since these are being tested in Colorado, we wonder if they next phase of devises will record a users THC level while he pees then tells him he's "too high" to drive?