My wife books people into jail on a regular basis that are at .4 or higher and you'd never know they were drinking if you didn't smell it on them. Yes, these tend to be 'career' drinkers, but the point remains, .22 is not a measure of drunkenness. There IS no way to determine drunkenness by amount of alcohol consumed. It simply cannot be done. There is no metric. Tolerance, body mass, body mass composition, metabolism, intestinal makeup (length/health/composition of duodenum), liver function, among many other things all factor into how alcohol affects an individual person. Edit: And yes, Yo was obviously impaired but you seem to be incensed that he was at .22. Would you be somehow less incensed if he had blown .09 and showed the same impairment? And if so, why?