Similar to the E-2 question, how would you react to a young 2LT who is being unprofessional with a strong sense of entitlement?

Respectively inform the 2LT about what's stated in AR 670-1 since I have probably addressed subordinates about a similar situation. I would "ask" for his name and unit (which he would probably refuse to give me) as I attempt to find another higher ranking officer or senior NCO in the commissary to quickly resolve the matter in a more unpopulated area.

If need be, I'll pull out that cellphone which has become almost as powerful as the Skillcraft and both photograph and record the 2LT actions. I'm quite sure at that point the 2LT will come to his professional senses and "stand down".

What I would not do is let it go unnoticed or unchallenged because of rank. Doing so would be the same as saying it's okay to be unprofessional.

With proper respect and courtesy then followed by affirmative action from his command as unprofessional action of unbecoming an officer.

Take this up to your Senior NCO. They should take care of a young LT.

This is very common with a few new 2LTs - they are young and just out of college - they need guidance just like anyone else. Good Senior NCOs will mentor their young officers while respecting their decisions - even when their decisions are wrong. I'm retired SMSgt - many times as a TSgt, MSgt, and SMSgt - I had took a young officer behind closed doors and respectfully spoke with them.

Squaring away a 2nd/Lt. is above an enlisted persons paygrade. It up to the CO. or another officer. You might mention it to an NCO. who you are friends with. . The so called officer would not be rude with his Co. or a higher ranking officer. If they are its not the same Army or Marine Corp. I knew. Semper Fi.

Why bother?

Maybe ask him his name and unit then contact his unit and politely inform them one of their officers was not aware of that rule.. If he refuses then take his picture and post it on the base, division, battalion, unit, etc. Facebook page along with the Reg stating the proper rule. If you are lower rank do nothing at least you tried to help him. Most likely someone with a higher rank will see him too and say something.

Besides wanting to cold cock this poor excuse for an officer, I would do the same thing. Loudly follow this sad sack where ever he/she goes. Exhalting his/her discrepdency all the while until we come upon a SgtMajor, captain or General officer.

Any of his subordinates have a right to address this Lieutenant in a respectful manner about his unprofessional behavior because he himself has superiors, but, don't ever embarrass him in public. I think this would more humbling to him.

It has been a long time since I was in, but walking around the commissary with a head set on seems like NUNYA.....as in NUNYA bidness.

Whenever given a uniform correction even if the advice was wrong I have always thanked the person regardless of rank for looking out for me. Before retiring my favorite piece is cold weather gear was my brown sweater. Many time I was approached and told it was not authorized. I would thank the person for their correction and if I had the time for a teaching moment I would politely ask them what made the sweater, worn under the uniform jacket, unauthorized. Most of the time it was just what they had been told, the famous them and they, I would then explain that while I appreciated their looking out for a fellow Soldier that the Sweater was in fact still authorized and where to find the regulation and updates,/alleracts about uniform wear.
If the young LT does not want to listen I have plenty of numbers on my Cell Phone that I can send a picture to who will get his/her attention