Am I Supposed To Be Offended?

I got referred to as nigga once last night and also nigger once. A guy came in and said "What up nigga?" and later on a guy said "You a crazy nigger." when referring to the price of a Black and Mild cigar. I'm not sure how to take this. Should I have answered the first guy with "Not much, cracker." and the second guy with "I don't set the prices, Honkey." What do y'all think?

Keep on being confused.

I really wanted to end with "Keep on burning crosses." But I'm not to sure about y'alls sense of humor.