That said, regardless of statistics, regardless of what is normal, regardless of pretty much anything, protocol for being bitten by an unvaccinated mammal is basically universal: you cut its head off, and you see if it has rabies.
That statement is simply false. My grad school roommate had let his dog's vaccination expire, and when she bit a girl who was visiting us, the county quarantined the dog for 10 days at the pound, after which she was returned to us.
From my link, about squirrels:
Unless there's some evidence that the animal had rabies, you don't kill squirrels, and you don't chop someone's dog's head off. Quarantine is the safe, humane, correct action here.