Does anyone else initial their work gear?

Marine boot camp. We had to mark everything with a stamp kit. DI found a sock with no markings on it so we all were made to dump out our foot lockers, push all the stuff into a pile in the middle of the squad bay and then we had 15 minutes to get "our trash" from that pile! He called it "Climbing Mt. Suribachi" from Iwo Jima fame. There were 90 of us!!!! Hilarious now I think about it, as was much of Boot Camp.