A Dells man has been charged with kidnapping his father using a knife.  The deputy said in March 2013 after smoking marijuana and snorting cocaine, 28-year old Dustin Knott just snapped.  He had a feeling his father needed to go to jail for sexually assaulting his girlfriend.  When his Dad arrived to pickup his son, Knott was holding a knife, threatened him, and ordered him to drive to the Wisconsin Dells PD.  After investigating the incident, Knott was arrested and transported to the Adams County Jail. In addition to kidnapping, Knott has been charged with false imprisonment and disorderly conduct using a dangerous weapon.  During a court hearing, bail was set at a $2000 signature bond.