Try skipping out on an ER bill as a citizen with a permanent address. They'll threaten to sue. The corrupting influence of all this fraud is going to end up eating away at the honest behavior of everyday people, who would never have even thought about being less than aboveboard, before all this. It's pernicious.
The hospitals around here are supposed to be quite aggressive (they've always been cordial to me, but I pay). That may be why no ERs have closed so far.