I had my CCW (LTC in my state) a little while before campus carry became legal, but I didnt carry all that often because I was on the university campus all the time. When campus carry went into effect, even though I knew it was concealed, I walked around with a feeling of impending doom for the first week or so. I'd look behind me all the time to see if anyone was staring at me. When I started appendix carrying, I'd quickly turn around after passing people in the hallway to see if they had noticed anything, nada. Fact is, as much as you think it's really obvious you are carrying, it's really not. People just plain dont pay attention. I realized I could get away with carrying a huge gun, no problems.
The only issue I had is that my backpack would ride uncomfortably on the grip of my pistol in the 4-o'clock while wearing the IWB Galco Kingtuk. And when I sat down in hard plastic chairs, it would make a ridiculously loud :thump!: that struck me as suspicious.
So for awhile, I decided to try appendix carry at the 1-o'clock position. Most of the holsters I found were downright painful to sit down with. I almost gave up on it, when I on a whim I decided to try out the Crossbreed AIWB holster. To my astonishment, it was perfect!. Its got one clip for your belt and it will pivot, so when you sit down and your leg comes up it will pivot clockwise up out of the way so your leg doesn't get pinched. You just have to get in the habit of, when you stand up "readjust your shirt" simultaneously push the holster back down. Do it a couple times and it will become seamless. The Crossbreed AIWB is my favorite holster hands down and I use it with my 9mm Shield. I'd recommend giving it a try.
I thought I'd add, it also possible to tuck your shirt in with the Crossbreed holster. Your shirt will be in front of the gun, kydex and leather, but behind the crossbreed clip. I thought people would take notice of the clip, but they dont. If you are wearing a full suit for work, I'm sure the jacket would distract from the clip anyhow.