Oh my, now having fun is no longer politically correct. I guess the box of grid squares, a can of track tension and the like are cause for issue.
I suppose giving our new LT ( when I was an Infantry NCO) a ball peen hammer and having him tap the armor of our Bradley for soft spots would be a capital offense.
Going too far, as in the Maritime example, is going too far, but most is just enough to keep folks sane enough to enjoy life!
Whatever!
THAT is hilarious. Just think of what would be said if a higher grade officer walked by while that new LT was tapping on the armor of the Bradley.