Bloods get a bad rap that they don't really deserve. Most baby boids are somewhat pissy when young. Bloods are no exception. Both my bloods are hissers. My male is a little brat and still strikes at me (not so much as at first though) the female however, can be freehandled perfectly safely. I just use gloves with the male.

With age they almost always grow out of it as long as they are handled gently and consistently.

A blood will stay on rats it's whole life.. it's the red tails that will eat the rabbits!