I wouldn't favour a reduction to 20mg. It seems* I'd likely still pass a test at 50mg after two pints, so my initial resistance to the proposal has weakened. The average man, drinking at an average pace, could still consume two pints. And the average woman, drinking at an average pace, can have two glasses of wine. I think that's a fair and responsible limit for fair and responsible people.
*Based on a handy individualised blood-alcohol calculator at the following address
(which has a rogue comma to avoid the foot.ie language censor) - www.rup,issed.com. -
http://url.ie/2oog.
Cheers dahamsta, I've learned something new today.