Poor kid? She's obviously loving it.

5 for children!

Muuuuuuuuuummy! Are you my mummy?

I hope that you and every other dolt that thinks a child running for her mommy and screaming/crying is "enjoying herself" have your private parts ripped to shreds by gremlins. I know that may be harsh, and I stand by it. It is never ok to let your child believe the one person that is supposed to care for them is instead running away while they scream/moan/cry in desperation.
I have also seen some pretty messed up parents get their kicks by knocking the kid down on the bed repeatedly, tickling until they can't talk (which should clue you into the lack of breathing going on), and pretending to give them away to strangers - all to the point of the child's desperation, and while laughing along with the rest of the idiots that have no fucking clue how to see children as FRAGILE HUMAN BEINGS instead of toys, slaves, and possibly money-making amusement. If you would get pissed at someone doing it to you, don't do it to your kid.

I don't get the sense the parents were trying to keep the kid scared and alone -- the kid panicked for half a second, but as soon as he/she saw the parents, everything was golden again.

Now the videos where they make the kids play the maze "game" and the screaming witch face makes the kid cry ... yeah, I'll toss in a few hungry gremlins.

Imagine this thing in a "stand your ground" state.

on HALLOWEEN?

Pussy.

Yeah on Halloweeeen! Specially on HALLOWEEN boy! Maybe you're new round these parts... Seems the youngins' don't know nuthin about.... the incident.