Originally Posted by veloman
Anyone who tests over the legal limit after a night's sleep has got some real problems.
I guess in the UK we like a good drink...
I don't think it is as uncommon as you think to be over the limit the next day.
Standard Drinks As A measure Of Alcohol Consumption And Intoxication
that site has all the calculations:
Lets say I'm in the UK, drinking a standard 5% (and here weak is around 4% standard is around 5 - 5.5% and strong is around 6 - 7.5%)
and I drink 6 pints.
A 568ml pint of 5.0% (mid strength) alcohol beer = 568 x 0.05 = 28.4ml alcohol
28.4ml / 12.50ml = 2.72 standard drinks.
(e.g if you can drink 2 standard drinks in 1 hour and be safe to drive, then even if you try really hard and nurse your beer into a horribly warm finish, you still can't drive).
but I drink 6 between 8pm and 11pm. (and that's only 2 per hour)
(that's 13.6 standard drinks/units)
I go out for work at 8 am, and I'll have had the 8 hours sleep, in fact I'll have had 9 hours between bottle to throttle.
12 (hours) + 1 = 13 standard drinks "allowed" during that time
6 (pint) x 2.72 (standard drink equivalents) = 13.6 standard drinks
(so I'm still a bit over the limit, and need to be around 40 minutes late for work...)
I don't think that drinking 6 drinks, as a part of a celebration is particularly "going for it". nor do I think that doing this "occasionally" would indicate that someone had a problem...
Having said that, if you based your opinion on this site:
Drinks Before Driving If BAC Is .05 - Business Insider
where the chart suggests that a fat mat (250lbs) could drink 5 drinks and be just under that 0.8 limit then yeah, I'd see that as a problem.
that site suggests that anyone could drink a large (35ml) shot of 35% whiskey (that's 1 drink) and be safe to drive, in fact both sites claim that a couple of run and cokes, (single measures) over an hour and most people should feel fine to get in their car and drive!
but five drinks (for that fat man), that's a quarter of a 70CL (standard UK size for spirits) bottle of whiskey.
almost a whole bottle of wine to himself...
yeah, based on that (quite bad) advice then that sounds like a problem.