I can get upset easy, but only if it's something done by a person I hate with a passion, IE, my family. A bunch of ignorant, arrogant ret*ds who rather talk behind someone's back than talk to their face. They move anything of mine a foot, I get angry. But ONLY with them.
If I am insulted, in a non joking way by a person I like, I don't get upset. I take it as information to build myself upon. If someone (other than my family) inhibits my way of life without knowing it, I don't get mad, they don't know. I don't get road rage. I don't get into fights. Heck, I took a full fledged punch to the face before and did NOTHING, sure I got mad a few minutes later (from the pain that THEN started to appear in my face, besides, the punch was for NO reason).
I have a friend who is NOT an aspie, and he's a bit of a psychopathic type (watches horror movies but rather do worse in real life to anyone who walks in front of him). Meanwhile I'm incredibly docile, telling him, quite directly, he's a psychopath and needs to calm down. He gets mad easily, and makes me notice, I don't.
So no, aspies do NOT get upset real easy. PEOPLE get upset real easy. Idiots just like labeling entire groups based on a single theory they develope from one person, even if what they know about the person is true or false.