Police say a Marin County couple with several drunken-driving arrests between them let a 13-year-old boy drive them home to avoid another DUI.

San Anselmo Police Sgt. Rob Schneider says the incident occurred after the three had dinner at a downtown restaurant Sunday night.

Officers investigating a vehicle stalled on a major thoroughfare discovered the underaged driver. Schneider says the boy claimed he stopped because he was "freaked out" and refused to drive further.

Thirty-two-year-old Heather Choulos of Mill Valley was charged Monday with child endangerment and contributing to the delinquency of a minor — both misdemeanors. A message left at a number listed for Choulos was not immediately returned.

Her boyfriend has not been charged.