Overhead, I get it. I also open carry when hunting and hiking. I open carry there because I carry a different kind of gun. One that is much more comfortable open carried than trying to conceal. Just wanted to see if your choice was because of comfort, speed in draw, etc. I also conceal in public places, not because I'm concerned about frightening others or because I feel it is more advantageous from a self-defense perspective, but because I just don't want to be bothered with people's (including law enforcement) reactions even though reactions are few and far between here in VA. I don't want the confrontations these guys in the videos get, but I'm not concerned about them doing it if they have the time to kill.
I open carry while hiking or working mostly because it is more comfortable for me as I am moving around a lot. I tend to sweat as well and I prefer to keep the gun away from that if I can. The gun I carry most of the time is a little Ruger SP101 so size it not really a concern. Honestly I am not really even that concerned about animals, the largest thing out there is a black bear and in all my years dealing with them only one did not take off running when it saw me. That one decided to stand between me and the outhouse in the middle of the night, but that is getting a little off topic