Stupid is not a strong enough word to describe these alleged jewelry thieves.

Police say a man and woman were arrested this weekend in Palm Springs after stealing a bracelet and ring from an art studio. And how were they caught?

They signed the guest book.

Megan Ohara, 24, and David Ziskoski, 19, were arrested for allegedly stealing the jewelry, which was valued at $6,000.

Here's how it went down, according to the Sun Sentinel:

When confronted, Ohara told police she had the items in her purse. She gave the officers the ring and bracelet, and subsequently, she and Ziskoski were arrested.

As officers arrived back to the gallery, the artist said he had noticed something in his gallery's guestbook. Someone had written multiple fake email entries into the guestbook, including "wedidnttakeit@gmail.com," according to the arrest report.

Two of the fake emails included the name "Meg" and one included Ohara's phone number next to it. Also on the page was a drawing of male genitalia and a woman's face labeled as "Meg."

Someone get these two a Darwin Award, stat!

Bonny and Clyde, they ain't.

A couple of very smart people bragged about their Aug. 24 Asheville, Ohio bank robbery by posting pictures on social media with the wads of cash they took from the bank tellers.

This is obviously not a smart idea.

According to Sostre News:

Police were helped in their investigation by the clear images showing John Mogan and Ashley Duboe hamming it up with their fortune in greenbacks. Four days after the robbery, they began posting photos of their loot, and one friend complained that Mogan " didn't hook a brother up."

Mogan and Duboe were arrested this week for the August 24 robbery. Police say they gave a note to the teller in the Ashville bank, and walked out with a tall stack of bills. He looks nervous on the surveillance video, but in the days after the heist, they both looked gleeful on their Facebook postings.

Apparently, Morgan had just gotten out of state prison for an earlier bank robbery. He put on make up to disguise his face and neck tattoos. But sadly, nothing could disguise his stupidity.