Go get yourself certified to teach and coach, that would be a great way to give back a second time, wouldn't it sarge?
I dont know about you, but in my Army sarge, we lifted light pole logs from the left to the right shoulder as a squad, chest, squats, sit-ups, and 6-inch toss. Then instead of pounding tires, we chopped Sequoia Trees, then we carried a 5.56MM ammunition crate around the track one time non-stop and passed it on to the next group, Then swam the local river stationary against the current for 20 mics.
So I dont know if I could give back because in my Army sarge, we were warriors, hard charging combat Soldiers and I would need to come up with a Risk Assessment for today's Free World.
This was the only Marine I would accept in my Army sarge.