im not 90lbs.. but i have a higher tolerance for alcohol now and one beer wont do anything for me but given my height and weight it would probably put me over the limit.
i think the laws are fine for now but i agree the 4th time!? srsly.. if you get caught on the 4th dui, you have a problem and need serious jail time, even if its to keep you from getting behind another car without a lic... god knows people dont care if they lose their lic or car, they will do it again.