HARRIMAN, Tenn. (WVLT) -- Mark Anthony Ferguson is accused of touching himself inappropriately in front of his grandmother.
Documents from the Roane County Sheriff's Office tell the story. Mark Ferguson's grandmother called 911 and told deputies he was trying to get into her bedroom. Afraid, she ran for help - scared what Ferguson might do. When she opened her bedroom door, she said she saw her 28-year-old grandson naked, "messing with his privates".
She told Local 8 News she was scared and didn't know if he was going to jump on her. She also said it wasn't the first time it's happened.
Ferguson told deputies he does this because "he wants sex and cannot get a girl his own age."
He's charged with domestic assault and will be in court January 28.
Ferguson's prior criminal record includes assault, driving on a suspended license and vandalism.