Door-To-Door Salespeople Get The Best 'Go Away!' Ever

This door knocker packs a punch.  

Door to door salespeople are not nearly as common as they once were.

But they're still a pain.

Which makes me wish this video from Energy Online, a New Zealand gas and electric company, was real.

In it, salespeople use a door knocker and get the scare of their lives.

I want to buy one of those knockers for my front door.

Watch, with a hat tip to Tastefully Offensive: