If you were a nighbor of mine and let them play with a rifle without getting permission from me or the wife, the best option for you is that we would have words at about 90 decibels.
Now hold on a minute, nowhere did I say that he should have let the kids handle the rifle without permission. I said I agreed he did the right thing because the parents weren't there. I said he should be neighborly and go talk to the parents instead of hiding in the closet, lol.
Perhaps you should go read my posts again if you're confused about my position.