I guess you can't blame this kid completely. Look at her dumb mom who's also scared. It's a freaking roller coaster not Michael Jackson's pedophile village or whatever. I imagine this kid making this face whenever she is doing something that normal people would consider fun, like eating cotton candy or riding dirt bikes or whatever.
I bet you that old guy's knees don't even work properly and yet, he blew that little kid up with an epic stiff arm. I hope grandpa did a sweet touchdown dance in this kid's grass-stained face after this ownage and I bet he said something like "don't stand on the tracks when the train's coming through, bitch."
If this little punk tried to throw a snowball at me I would push her down and whitewash her face into the snow and ice, even though her snowball probably wouldn't even come close to me because of her crappy snowball making/throwing skills. And then I'd be like "Don't start what you can't finish, you big crybaby."
