Flagging is always appreciated by the training NCO, it gives them reason to get profane and violent. I got buttstroke in the back of my Kevlar once because my buddy went the wrong way, wasn't where he was supposed to be and I flagged him. NCOIC said I should be more observant.
He was right, I was stupid. Still hurt like a mf'er.
When I was in HS, we had open campus at lunch and 6th hour. Me and a couple of buddies would get food then head to my house (I lived closest to school) and watch Mr Food at the end of the news, then Days.