In Norway you can get up to 6 months in prison for selling alcohol that is over 60% ethanol by volume. Up to 2 years if the offense is "particularly serious".
It's not allowed to serve people that is "visibly intoxicated" but almost no one cares. At a normal Friday and Saturday night, Oslo is a battlefield of shitfaced people.
Strictly speaking the same is true in the UK, but lol.
Section 141 of the Licensing Act 2003:
"(1) A person [...] commits an offence if, on relevant premises, he knowingly—
(a) sells or attempts to sell alcohol to a person who is drunk, or
(b) allows alcohol to be sold to such a person.
[...]
(4) A person guilty of an offence under this section is liable on summary conviction to a fine not exceeding level 3 on the standard scale."
Where "level 3 on the standard scale" is £1,000.