You would fail even harder. Drug testing machines ALSO look for concentrations of several chemicals that should be in urine. One of them is creatinine, but there are others. If your creatinine level is too low or nonexistent you will fail the test before it starts.
you flush the toilet
try it
It happens.
You get lyrox cleaner!
it gets wet
You waste Coke
You waste Coke
It goes into the toilet
Well, it depends how many times you don't flush a toilet. If you don't flush it one time, nothing happens. But if you don't flush it for a month or something, and then you finally flush it, it may get clogged with toilet paper.
It will short out. (Trust me it has happened to me.)
You will pee/poop in your underwear
A genie appears