This one is not on my list as I was not told not to do it. Back when I got “deployed” to Ft. Bragg in 2001 with the North Carolina National Guard – I have to use the quotation marks since I still can’t understand how you can be deployed in the same state that you live in – I had the opportunity to be attached to the XVIIIth Airborne Corps G-2.
Quick explanations: the XVIIIth ABC is the parent organization over the 82nd Airborne, the 101st Air Assault, 10th Mountain, 3rd Infantry and a few other smaller units. G-2 is the Intel Section.
I quickly noticed that all of the officers carried black notebooks around everywhere they went. Within a few days our officers were also carrying around the black notebooks. Being the nosy sort, I asked a few of them what the notebooks were for, thinking that maybe I should be carrying one too. I was told to mind my own business.