If you're disabled or kid, just pour that stuff to glass. Sip is not in any way definite measurement. Sheet of paper is somewhat decent. Better one would be t

If you're disabled or kid, just pour that stuff to glass. Sip is not in any way definite measurement. Sheet of paper is somewhat decent. Better one would be this: buy a car. It will automatically stop ignition after 100 000km. Do you really have problem with that, if you know it beforehand?