SGT Norm Hampton is tucking the back of my BDU shirt as I put on my pistol belt in preparation for MP law enforcement duty. It was quite a skill to give a tuck that would stay and that looked good for guard mount inspection. MPs stood more guard mount than any other MOS in the army. I'm sure the Old Guard also stood a lot of inspections, but that was only for a few years while they were assigned the duty. MPs stand guard mount for a huge part of their service.