Everyone acts like an arse if they have one too many.
That's why it's called having one too many.
If they'd had one less, they'd be fine.
Perhaps, but there's many levels of arsyness. Talking gibberish with your mates, falling asleep, believing you can sing like Frank Sinatra. All harmless.
If you and your partner think it's fine to get behind the wheel of a car then mouth off to the police, making bizarre threats, then that's lunacy
, whether the result of just the drink or a mixture of drink and over-flated ego.
Oh and by the way one less wouldn't have made a hell of a lot of difference in this case, her husband would still have been over the limit.