A robbery charge is looming for a 46-year-old Lincoln man, after he took off in another man's vehicle during a road rage incident.  A 48-year-old man was trying to drive around David Larsen's truck and boat stopped in a neighborhood street last weekend near 14th and Superior.   Police Officer Katie Flood says Larsen allegedly swerved in front of the victim to block the vehicle from going further.   Flood says Larsen allegedly threatened to kill the victim, while the victim was trying to get his license plate numbers.  Larsen grabbed the phone, then got in the victim's car and tried to drive away.  The victim tried to stop Larsen, but he was punched in the face.   Witnesses saw what happened and contacted police.   Larsen was arrested Wednesday at his home.