We’re very fortunate that most criminals simply aren’t very smart.

In a photo he posted on Twitter, Kwmaine Davis had a big smile on his face as he held one gun in each hand at a shooting range. His message to his followers: “Yes, I’m really bout that action.”

What Davis didn’t know is that one of his followers was a Boston police officer.

As a convicted felon, Davis isn’t allowed to possess guns, even if he’s only shooting them at a firing range. A federal judge sentenced him Wednesday to 18 months in prison for doing just that.

After seeing two firing range photos Davis posted on Twitter, Boston police notified federal authorities. Police were concerned that Davis, a known member of a violent Boston gang, had gone to the firing range to perfect his shooting skills. He already had been shot twice himself and convicted once before for illegal possession of a gun.

When confronted by police with the Twitter photos, Davis agreed to plead guilty to being a felon in possession of a firearm.

He was sentenced to prison after saying he accepted responsibility for his actions and wanted to turn his life around.

How many of you think that Davis will actually try to “turn his life around” after his time in prison is up, when being shot twice and convicted once before for a gun crime wasn’t enough to put him on the straight and narrow?