People Who Curse

What do you think about saying, "nigger," in public?  Also, wouldn't it be used by more sensitive English people?  I don't really like worrying about it all the time when it's not even happening.  There's nothing wrong with being called gay, but there is no reason to and it can happen to be an insult.  Just say sorry I take it back if anything happens.  If you're mad, what can you do?  Maybe you feel crappy.