I had a cop pull a gun on me once because he was looking for someone who apparently looked like me and was known to frequent the area I was in.
He was probably justified in doing that, given that you matched a suspect's description. Glad it didn't go too far.
In the case where I was nearly killed, there had been an early morning robbery where the perp used a car that was the same color as mine. That, and the fact that the perp was a black male were the full extent of the profile.