Why didn't I think further?

I don't think I could.  I should have known that even if someone wanted me to do something bad that they would get into more trouble if I did it.  I mean if it was something I was doing to them, just to see me do it or maybe to tell others I did it.  Maybe, they had nothing to do.  Yea, I've seen people dare others to do things.  It's just silly stuff, nothing like robbing a bank.  You have to be careful because someone could tell the police if you do something funny to them.  You can say they told you to do it, but it still wouldn't be a good experience.  I took a lie detector test for fun.  I don't know if they asked me anything.  This was when I was 13, I think.