Many things. The story I am about to tell you is a great illustration of what is wrong with me, as an Aspie. Sometimes I don't THINK before I act.
One time, in the early 1980s, right after I got my driving license, I was driving my parents' car (my sister was in the car next to me, still too young to drive). We thought we saw Kelly and Shelly, the twin brothers, in a car driving the other way (we think there was a third and possibly a fourth person in the car, maybe they were on a double date!). So we turned around, and followed them dangerously closely. I then turned on the HIGH HEADLIGHTS to see if it was really them.
Knowing what I know today, this was incredibly rude and stupid. What if a deer had run out into the road and they had to stop quickly? (trust me, there were many deer in this area) What if they wanted to stop quickly just to cause a car accident and get me in trouble with my parents? And why couldn't I have been satisfied with a feeling that "I saw them but they didn't see me"?
Nowadays, I try to be super-cautious, and not just in my driving. I try to be careful when talking to people too. "If a tree falls in the forest and there are no humans around, does it make a sound?" Anyone who asks you that is just trying to make themselves feel smarter by tricking you with a trick question. So I pause before answering and analyze whether they are trying to trap me with word games.
I try to think about the negative consequences of anything before I act these days. I am not immune from doing stupid or dangerous things, but I am less likely to do them -- and my caution makes me safer today.
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REMEMBER: 1. Preserve Nature. 2. Always wear a helmet.
3. Ride safely. 4. Read owner's manual carefully before riding.