I was about to post about this.
Being politically correct bugs the heck out of me. It's kinda like waling through a minefield with each mine being a word that you can't say without someone getting offended.
At first, it's just one word. So you're like, "Ok, I just don't say that word anymore." Then a few more words get added and you're like, "I'll just avoid these also." Then, more and more common words that are usually slang get added and you can't say them. This is wear it gets tricky. Now, words that most people use on a weekly, if not daily, basis aren't allowed. And if you slip up one time, the whole field explodes right in your face! I'm not really saying this has happened to me personally as I'm pretty good about guarding my tongue, but people that I know have this happen to them all the time.
I make a joke every day, sometimes every hour or so and all of them "politically incorrect." I make gay, black, white, asian, stupid, rude, feminist, and ever necrophilia jokes. If you get insulted from my joke, I will say I'm sorry if I feel that I'm unjust, but if you're still insulted after I clarify that it was a joke, then I'm going to get mad.
Even if I did say something that insulted you and it wasn't a joke, if you're mad after I clarify my reasoning behind it, I'm going to insult you again and this time not take it back. "forget you, you're still a jerk."