"What was he smoking?" is often just a joke when someone does something bizarre.
But consider the case of a man arrested in Old City for offering a cabbie a substitute for cash.
Michael Medvec, 23, allegedly tried to pay with a bag of marijuana.
While police were at the scene.
"The cops were only a couple of feet away," Sixth District Capt. Brian Korn told Philly.com.
Officers stopped because the taxi was double parked Friday night on Chestnut Street, and learned that a guy who owed about $8 left his phone to assure the cabbie he'd be back with cash, Korn said.