> I've just heard that 32% of accidents are
> caused by people who've been drinking.
> This means that 68% are caused by people
> who haven't been. So it's clear that the
> chance of your causing an accident if
> you've been drinking is only 8/17 of the
> chance if you haven't.

        This ignores the likelihood that few drivers are drinking.
        So it's sloppy thinking, but it might be true anyway, because
        the civilized drinkers don't drive, and thereby don't cause
        accidents. Let's get the odds down to 0/17.