I thought all playable races have same (or simmilar) description as Half-Orcs: "Half-orcs are not evil by nature, but evil does lurk within them, whether they embrace it or rebel against it."
Meaning basicaly that while there is some standard to expect ... you certainly can be an exception. O_o
If my comments bother you, there is nothing easier than telling me to stop. I mean ... I won't ... but it's easy to say.