A 17-year-old thief picked the wrong day to leave his brains at home.

The youngster was caught on surveillance video ripping off $18,000 in merchandise from a Louis Vuitton store in Bellevue, Washington, running for the exit — and then knocking himself unconscious after slamming into the store’s glass door.

What are the details?

It isn’t clear when the broad-daylight caper occurred, but KOMO-TV ran a story about it Oct. 27.

Fox News, citing police, said the suspect grabbed handbags worth $18,000 off displays and tried to run from the store.

The problem for the perp? A door was in his way, and he apparently didn’t see it.

So he ran headlong into the plate glass and knocked himself out, KOMO said.

“Brazen is the perfect word for it,” Bellevue Police Captain Rob Spingler added to the station.

Prosecutors told KOMO the teen was part of a retail theft ring that includes a convicted killer and career thief.

The teen’s name wasn’t released because he is a juvenile, Fox News said.

Police on Tuesday told TheBlaze the teen was arrested and then released to a family member.

Raw Video: Man knocks himself out trying to flee store with luxury stolen goods | New York Post youtu.be

How are folks reacting?

Twitter observers had more than their fair share of fun commenting on the young crook’s misadventures:

  • “Perfect payback for the punk!!” one user exclaimed.
  • “Hilarious!” another user announced.
  • “His family will likely now sue the store,” another commenter theorized.
  • “I could watch that video over n over,” another user said.
  • “Clean windows … greatest crime stopper ever,” another commenter wrote.

Others didn’t find as much humor in it:

  • “Glad the Democrats that ‘lead’ this state are stopping this…” another commenter said sarcastically.
  • Another use wrote that officials “will have this criminal released within hours. It’s called restorative justice.”