Slip of an insult

A few years ago, I remember Ian telling me that I tend to point out people's faults. I didn't realize this, until Ian brought it to my attention, and it is true. I truly am an evil girl and I say some of the meanest things to my friends, but the thing is, it's all sarcasm, and my friends are aware of this so they unhurt by what I say. When my friend Jay signed my yearbook for last year, he put that he was happy that he knew me well, for if he didn't, he'd be really hurt by the things I said. Unfornuately, some people don't realize that it is all sarcasm though and I am known as the quiet girl at school, and when things slip out of my mouth and people who don't know my personality hear it, they're pretty shocked. Like yesterday. Now to start, I have this friend named Jon who I sit by in my Economics class - where this particular incident took place. He's a big boy...a big, BIG boy. He's about 6'4 and weighs about 300 plus lbs, and the majority of it is not muscle. He's a big boy. Now, I have nothing against people with weight problems - nor anything like including race, sexuality and such, but with my friends, I tend to take note of a flaw of theirs and use it against them in some sarcastic joke or whatever. In the class, we were talking about Rose Festival, which is our town's yearly celebratioin where we have a parade and a skanky carnival. From the discussion of Rose Festival, we got onto the topic of the skanky carnival and Jon said,"You know what ride I hate at the carnival? The Round-Up." For those of you who do not know what the Round-Up is, it's this circular ride where you stand against the wall and it will start to spin really fast, causing you to "stick" to the side, and then it will raise vertically as it continues to spin. (Well duh, of course it continues to spin, otherwise you'd be seriously hurt...) So, Jon said that he hated that ride and I just blurted out, without even thinking: "Jon, can you even stick to the side of the round-up?" Jon was so taken aback and hurt by what I said that his mouth opened, and just hung open. He didn't even know what to say. My friend Jay and this other guy who had heard me looked at me in complete shock for a few moments, and then began to laugh. But they weren't laughing at my joke, they were laughing because they were just so shocked. I felt really bad...but then again, I'm kind of proud of the fact that I said something so shocking.