Even then free health care does not cover the pain and inconvenience of an infection or eye injury caused by a rooster spur. These can be serious. In my opinion, an aggressive critter just isn't worth it. But that's me. I'm old and cranky and my tolerance for brats of whatever species is...
It really doesn't matter. Keeping a dangerous rooster around just isn't worth it. As I have said before, you can buy an awful lot of chicken feed for the cost of just one trip to the ER.