For starters, taking a "wallet biopsy" on a patient with a bashed-in head is wasting valuable time. By the time you can prove you can pay, you're gorked.
By the time the ambulance gets someone to the hospital, paramedics have had time to radio in insurance and credit card info and get it approved or not.
If not, then just roll the gurney over by the dumpster and leave it.
So9