Here's something scary that my brain likes to do.
*Standing at train station, and notices a silly person standing right on the edge of the platform*
"That's a stupid thing to do. They might fall off and get hit by a train. I could easily accidentally push them off too. Maybe I should just to teach them a lesson, that's it's dangerous to stand on the edge of the platform. I totally should. No, no I shouldn't. They might die then I'd get done for manslaughter...or murder....either one. I probably should do it...No no no stop it, brain. Oooh look at the pretty dog!"
Don't stand on the edge of train station platforms, kids; I might push you off.