There is familiar saying movies use about drugs: "Don't get high on your own supply," which this Florida man must not have adhered to - why else would you smuggle cash and drugs into jail unless you had tested your own stash?

NBC Miami lays out the facts that lead this man on one of the most idiotic of ventures.

A man arrested for trespassing in Marathon was given additional charges after he took a briefcase full of marijuana with him to jail.

Jeff Pollock, 42, was taken into custody Saturday after his ex-girlfriend called deputies saying he refused to leave her home on Camino Real in Marathon, said a Monroe County Sheriff's Office news release.

He was arrested for trespass after warning, but before he was taken away, he told deputies he had a briefcase with cash inside that he wanted to take to jail with him, the release said. When a deputy asked Pollock for the code to open it, he refused to give it to him.

Once Pollock arrived at the Marathon Detention Center, he agreed to give deputies the code, and they opened it, finding $9,480 in cash and 27 grams of marijuana inside, the release said.

Pollock was charged with possession of marijuana and introduction of marijuana into a detention facility. The cash was seized for possible forfeiture, according to officials.