I have it from good authority from a provincial cop, that the method I suggested over pints one night in her pub would work... But I'm not gonna say what the method is... Drunk drivers should be made to take public transit for 5 or 10 years at least... for a first offence...

I will say this, there's a reason why the cop instructs you to "breath normally" for a few minutes before making you blow into the machine...

{~`