Thx, and also because Sado is not a racist by nature it wasn't even racist because it was a damn synonym for "dude".
The term "nigger" is only racist if you link it with a racist expression/meaning. Even black friends of mine don't give a shit if I say "that nigger..." and it doesn't matter whether the guy I meant is black or white, because they know that I'm not a racist.
I have to admit that we don't use it often because we don't use the term often in general. We only use it partially while listening to rap or whatever. It depends where we are, what we are doing and stuff like that.