You were lucky.
Dearborn, Michigan is in the 83% percentile rank in the state for Violent Crime. It is in the 75% percentile rank nationally. Lower numbers are better. In this case, 83% of cities in Michigan have crime rates equal to or lower than Dearborn, or said another way, 17% of cities in Michigan have crime rates higher than Dearborn.
http://www.homesurfer.com/crimereports/view/crime_report.cfm?state=MI&area=Dearborn
I find it quite interesting that someone that claims South Carolina as a home state is lecturing someone in Eastern Michigan about Dearborn.