When I was a kid, one time my dad tied my tooth to a door knob to pull it out.  I was an emotional wreck during the whole process, so kudos to this little girl, she's a trooper!

Also, I would like to point out that this is genius, it happened so quick she didn't even know that the tooth was out.  Take some notes Nerf, you may have a new advertising campaign here!

A mom posted video of her son using his Nerf gun to yank out his sister's loose tooth. It starts with them on the couch and you can see the string that's tied to her tooth. When he fires the gun, the string goes flying.

The girl looks a little startled, but then she gets happy when he brings her the tooth from the other side of the room.