Having worked as a Health care professional our team are regularly called to A&E to help assess patients, some occasionally drunk , it's definitely true why hide that fact? That's why you often see Police in A&E.
As well as Drunks there are the OD's.
I clearly remember, one chap who had taken drugs who decided to try and stab himself in the heart, he missed but I was the Echocardiographer who tried to scan him to assess what damage he had done. The team around him trying to sort out this man was a significant number, as he was still high and thrashing around, it was like trying to assess a moving target. Those who were trying to help, get him calm and stable were all being kept away from assessment of others in A & E.
But that's life now in Emergency departments throughout the UK and probably most of the world?