We up here - the people of the north - like out generalities, our ways of saying something that looks benign when we are really saying something else. As with the odd phrase "visible minorities", Canada has some unique euphemisms like "open beer":
A 30-year-old man has been arrested after being spotted with a case of open beer outside the Tim Hortons on Cedar Street, along with a second man. The men were also believed to be selling drugs, according to a report made to the police.
In high school my soccer team mate, the Swedish exchange student, got tagged for "open beer" outside a small town dance. Fine in 1980? Twelve bucks. He thought he was going to get deported for a while there. It's not the drinking of beer. It's not the giving of beer to someone under age. In Sudbury, it was not a case of bottles with their caps loosened. And it does not apparently apply to wine or spirits at a cultural level. In Canada, we really do not like the packaging seal of beer being busted. That is what "open beer" seems to mean. Is there a law like that near you? We don't say that the police found "an" open beer or that people were drinking where they shouldn't. The infraction is "open beer" simpliciter. The slammer awaits.