Should a man taken to the ER in an ambulance against his will have to pay the bill?

As George Varghese tells it, he was walking along a sidewalk in West Los Angeles when he tripped on a crack and fell to the ground, spraining his wrist.

"An ambulance appeared suddenly," he recalled. "Three men came out, checked my ID, laid me on a cart, pushed me into the van and took me to the...