People that moves so fast that it looks like they are getting scared when they are not? Dude, that ain't funny, it's a reflex, as far as I know it's great to have such reflex when something suddenly happens for real.
What's up with that? "Hey, my friend tried to play my favorite game I've played for months straight, he wasn't that experienced with the game and sucked, LOL!".
I have to admit, you can't explain your reasoning to me. I simply don't understand.