It may be easy to sneak a splif in public but you're asking for trouble when you're openly rolling a fatty.

A Medford man found that out the hard way when he was arrested at the Andrew Square MBTA station while doing just that, Transit Police said.

Paul Giglio, 32, was sitting on a bench on the northbound platform Sunday evening about to light when officers approached him. Giglio, who had a warrant out for his arrest on a trespassing charge, was taken into custody.