John Stamos reveals he's in possession of the 'Full House' couch, former costars weigh in: 'Thief!'

There's a thief among the former "Full House" cast members, and he's been exposed during quarantine.

John Stamos revealed he has the infamous "Full House" couch in his possession, and is possibly using it as a baby gate for his almost 2-year-old son, Billy.

On his Instagram page, Stamos (aka Uncle Jessie) shared a photo of the blue and yellow checkered couch that was blocking Billy from getting to a staircase.

"Baby safety gate, or one of the most iconic couches in pop TV history? You make the call," the 56-year-old actor captioned the post.

News of its whereabouts spread quickly, as Stamos' former "Full House" family members weighed in.

"Thief!" Andrea Barber, who played Kimmy Gibler on the sitcom, commented.

"Did you take the alcove, too?" Bob Saget asked.

The alcove – and Manny the mannequin – were safe with Dave Coulier (a.k.a. Uncle Joey).

"A lot of my farts are in that couch," Coulier added.

Candace Cameron-Bure (DJ Tanner) was surprised Saget didn't take the couch.

"You got it?? Not Bob?" she asked.

Jodie Sweetin (Stephanie Tanner) was also surprised.

"Whaaaaatttt?!" she commented.

It's surprising the couch didn't come up in conversation the last time Cameron-Bure and Barber hung out with Stamos.

Just a week earlier, the "General Hospital" alum shared a throwback video to Instagram of the three catching up while Barber and Cameron-Bure danced to New Kids on the Block.

"Other than putting your Christmas lights up early, Gibbler & DJ professing their love for @nkotb in this old clip hits the cheer up spot like there’s no tomorrow," Stamos captioned the video.

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This article originally appeared on USA TODAY: John Stamos took 'Full House' couch, former costars weigh in: 'Thief!'