Especially on asking LEOs or LEAs about Open Carry. Just yesterday, I had a young Sheriff's Deputy trying to tell me that, because I had a pistol permit, I needed to cover it up because other people might not like the sight of my openly-carried firearm!! He was also somewhat curious as to why I was carrying a 1911 clone "cocked and locked".
I don't think I convinced him that my rights trump other people's feelings, but we did fade into a good discussion of the merits of the '03 Springfield vs. the Garand.
One other thing; he tried to throw 13a-11-52 at me but stopped when I told him that it applied to concealed carry only and had to be taken in context with -55 and -73. They hate it when you know the law better than they do!!
For the record, he was very polite and the whole thing was non-confrontational. Had he been rude, crude, and socially unacceptable, I'm very sure the owners of the restaurant where I was eating would have asked him to leave. They know both me and, more importantly, my beautiful bride.