More than 15 years after she received a seven-year sentence for molesting a 12-year-old student she later married, former schoolteacher Mary Kay Letourneau has been briefly jailed again for the far less sensational offense of driving without a license. The 51-year-old spent a few hours behind bars for the driving offense and for missing a court appearance before she was released on $5,000 bail, NBC reports. She has two children by her former student; the second was born while she was incarcerated. They got married a year after she was released from prison in 2004. (More Mary Kay Letourneau stories.)