When an E-4 calls me "hey" or "hey man" knowing that I am an officer, should I bother to correct him?

If you have to ask, if the soldiers conduct is inappropriate, then maybe it's time for you to resign and move on..

Always called an officer sir in uniform or off duty. There have only been a few times where officers I worked directly with would "break the ice" so to speak and I was allowed to call them by first name. Of course, I would be going to war with these ladies or gentlemen. If you're a soldier, you're a soldier 24/7. The customs and courtesies still apply. Even if the officer doesn't enforce it, the subordinate soldier should already have the discipline to address the officer properly.

I’ll be honest: off duty, when you are both outside of uniform, you are just another person. Yelling at him off duty will do nothing but make you a joke to him and the entirety of the scuttlebutt it spreads to.

If he calls you like that in uniform even once, then yes light him up.

So when I was stationed on the Holland in Guam in the 90s, I worked in the NDT lab. We were one of the few shops that was allowed a fridge. We were mostly on a first name basis with each other, since we were all senior petty officers. Sometimes, even with one or two of the CPOs assigned to our shop. So one day we were all sitting around after working hours (like when we were underway watching TV in the shop after working hours iirc) and one of the other E-5s says to the CPO (E-7) in the shop, "Hey Holmes, grab me a Coke while you're up?" and he said this JUST as our division officer walked in, and the CPO in question didn't see the division officer and only saw him when he came back out of the dark room (where the fridge was) with said Coke for the person junior to him.

We all got counselled for this.

If I knew 100% someone was an officer (like from my command) even on liberty (or leave or any time, really) while I was on active duty? He was always "sir" and she was always "ma'am". That first answer about failing to meet standards means setting new ones? Totally on target. But this made me think of that story, so I figured I'd share.

Been a long time since I was active duty, but I don't think the standards have changed, a simple sir or Lt. or Lt. Rxxxx would be in order if greeting.

Yes! Not like he's a senior NOC and even they wouldn't do something like that. It's a sign of disrespect.

As a CSM I often corrected soldiers (including Officers) that soldiers are to be addressed or referred to by their rank not pay grade (I.e SPC or CPL not E-4)

Abso-fracking-lutely the SPC needs to be corrected. If he's doing it to you, he's doing it to other officers. Most disrespectful.

I've been out of the service for well over 22 years and even I still Sir/Ma'am, even if the Supervisor/Boss/Leader/Exec is younger than me. And yes, I still call those Officers (in Uniform) Sir even as a Veteran.

When you allow it, you become an E-2 instead of an O-2... your choice.

This is definitly something that should NEVER go ignored and without correction. Worst comes to worst you could either correct him yourself, or get in contact with whoever his platoon sergeant is. Disrespect of that caliber is never ok.