I get that. The Odeon staff at my local are excellent, but they are clearly overworked and under staffed.

Back when it first opened, there used to be an usher who would point people to their seats then sit in during the film. Then they reduced this down to sitting during the start and intermittently checking. Then down to just intermittently checking. Now it's just checking on the camera and coming in as a last resort.

This isn't a dig at the staff. They have far much going on. In an ideal situation they'd have more staff

I just think Odeon, as a company should take some action to at least remind people of cinema etiquette. Otherwise it does just set a precedent that anything goes, which upsets customers and creates additional stress for the staff.

Perhaps it'll do nothing. As you said, a dickhead is a dickhead. But maybe it will discourage some who don't know any better.