(Union County, IN)--Union County authorities are issuing a warning after a would-be good Samaritan became the victim of an armed robbery.  It happened Tuesday when a driver on East Contreras Pike stopped to offer help to the people in a pickup that was stopped on the side of the road.  The victim was then robbed at gunpoint.  The suspects are described as two white males with long hair in a white Ford F150 pickup truck.  Investigators say people should not stop to help anyone in a vehicle fitting this description.