Be careful about ceiling fans? Nooooooo. Learn how to edit video! This is a masterpiece. Short. Immediately back to a replay of the good part. Super fast replays of that replay. Audio of the girl getting her noggin hit that would have made the Three Stooges stop down in awe.
And the last blow in super slow motion was the icing on the cake. I'm almost ashamed to say the Zapruder film came to mind.
Get this person an Oscar for Best Film Editing. Contest over.
Edit: I guess I'll provide a F Bomb warning. That chick says something when she comes out, and I'm still not sure what it is.