IMO, that doesn't make any sense. If DCL allows you to bring alcohol on board, you are not "bending" any rule by bringing a glass of wine to dinner.
Now if you poured your bottle of wine into a flask and brought it to dinner and poured multiple glasses of wine to avoid the corkage fee, that's bending the rules.
A glass of your own wine is not an issue.![]()
I agree.
Honestly though, I have no interest in being the wine police. Better things to do with my time. I could care less what others bring in to the dining room....or don't bring in.