I once worked as a volunteer clerk in the A&E Department of a city hospital about 10 years ago. Being a hard-working volunteer meant I could voice strong opinion when I saw peoples of other nations who did not even speak English walk into A&E and receive treatment for the most minor of ailments from dedicated staff and doctors, and receive pills, plasters, bandages, antiseptics, etc, to take home. I said at the time that passports should be shown, along with another form of ID, and that the country of origin should be invoiced for all costs - as happens in Germany and France.