Well, people must have moments where they are rude in their lifetime. Nobody's perfect.
I dont mind you being sarcastic all the time. I really dont mind. I can take sarcasm. In fact, my tolerance towards sarcasm is quite high I'd say. But when it comes to rude behaviour, my tolerance is really low. Again, everyone must have moments they behave rudely. I dont care. As long as you dont cross my line. Because I am rude sometimes, I am rude sometimes to my close friends, I am rude to my family (most of the time). Why? because they are close to me. They accept me for who I am. So, I feel safe to be rude to them, once in a while.
But YOU! Your sarcasm doesnt affect me much. Same words, coming out from different mouth, different tone, it makes A WHOLE LOT OF DIFFERENCE! The way you said it was so rude, with that facial expression and you think it's funny. Perhaps you dont know how rude you were. Your impression was boarderline to me, and now, your impression is bad to me.
If you think that person is asking crap, you can always choose not to answer them. it is always better than pulling your face off, tarnishing your reputation in front of people ain't close to you. -.-
If you think that you're so great and that person is some sakai or some idiot, dont talk to them, they'll get the hell away from you automatically.
Thanks for being so rude to me.
So that I realize that I dont need to talk to you anymore.