I don;t know why the sight of blood, especially their own, upsets some people. I am sure they cannot help themselves, but it is just blood. I don't get squemish when Im bleeding, if its on my hands I'll suck it up (it tastes pretty good, and this way you don't lose it) or if its on my legs (where I usually get cut up from soccer games) I just wash it off with some water and it is instantly forgotten.