I've only found a handful (literally, about 5) of news stories about OCers being disarmed by common street criminals. More often the problem comes from LEO, and more often than that the criminal(s) see the pistol & don't even start the attack.
+1 I'm glad someone else has figured that out!
That is
exactly what our chief of police has said in the media he instructed his "troops" to do:
"My message to my troops is if you see anybody carrying a gun on the streets of Milwaukee, we'll put them on the ground, take the gun away and then decide whether you have a right to carry it"
http://www.jsonline.com/news/statepolitics/43347632.html
(about 3/4 of the way down)
I realize there are plenty of sensible, sane places in the USA where LEO take their oaths seriously & won't randomly attack a citizen. Wish I lived in one.
To make this more bipolar, our Sheriff is the one who has created such a stir by telling citizens they need to participate in their own defense & calling 911 while begging for mercy from the criminal is not their best option.