Too many hospitals allow the A&E to be used as an overnight recovery for drunks, druggies and those who have missed their last bus home. After witnessing it myself one Saturday night, a nurse told me that the hospitals do not have to allow A&E to be used this way but, there is a financial incentive for the hospitals which do. The night we were there, if A&E had only been treating the genuine emergencies, it would have been at least half empty.
A few years ago, Booze Buses were trialed but, I am not sure if that has been quietly shelved or not. The idea was that the buses would provide a safe place for people to recover from the excesses of their Saturday night and would be charged a fee when they sobered up.