Boulder police say a man used a knife to cut through a plastic patio wall to avoid paying his bar tab at a downtown restaurant Saturday night.

Police were called to Centro Restaurant, 950 Pearl St., at 10:43 p.m. Saturday on a report of a possible robbery in progress by a man with a knife. When they arrived, they found that restaurant employees had restrained a man they said tried to run out without paying for his drinks.

According to a police report, the employees said the man -- later identified as Robert Webber Engles, 42, of Boulder -- had been drinking at the bar and tried to leave without paying a $33 bill. When an employee confronted him, Engles allegedly ran onto the patio, pulled out a folding knife and cut through the plastic "wall.
Robert Engles
Robert Engles
" However, once he was outside the plastic covering, he was trapped inside a metal fence that surrounds the patio.

Witnesses told police that when Engles couldn't find an exit, he turned with the knife still in his hand and confronted the employee, the report said. The employee grabbed for the Engles' knife hand, while another employee jumped the metal fence from the outside and helped restrain him.

Engles was booked into the Boulder County Jail on suspicion of felony menacing, defrauding an innkeeper and criminal mischief.

He remained in custody Monday afternoon on $5,000 bond. A hearing for filing of charges is scheduled for Wednesday.

Restaurant employees estimated the damage to the plastic wall at $600, according to the police report.