When Arabs live in Britain we are careful to advise them that our rules apply. They are not allowed to do many things they believe to be ok per their ‘home’ rules.
A Brit who has (condescendingly?) ‘dedicated’ his last 25 years to his job in Saudi, has been caught with home-brew wine and seems likely to suffer for it.
Why did he do it? He can’t claim ignorance of the rules. Maybe he’s always flouted them. But one thing is certain, he shouldn’t complain.