Much ado has been made about open carry recently, but almost all the posts are stuck on either defending the 2A right to carry, or fighting against it on the grounds that it scares people (the Left's main argument, since there haven't been any open-carry incidents that the media didn't manufacture out of whole cloth).
Almost no one takes the next step, which makes it the moral duty of anyone carrying openly to be able to retain their weapon against a gun-grab (not a political grab, a REAL, physical, grab). This moral duty EXCEEDS the morality of your right of carry, by the way.
Read, as they say, The Whole Thing.
If you do not have some retention training, get some. If you can't, you might want to think about how you carry. This is one of the main reasons I rarely OC.