Fictional Story:
You board the plane with your wife and you're settling in. You notice a few rows down there's an obviously Frum looking individual who was (gasp!) placed next to a 4 year old girl, and hes getting antsy. He looks around desperatly for someone to help and spots a harried looking flight attendant.
"Sir, can you move my seat".
"Please sit down", the FA answers back, "after we take off we will try to help you."
"No!, I must move now!".
"It's a packed flight, sir, we will try to help you after we take off, but i'm very busy now".
You realize what's happening and quickly explain it to your wife. He's very frum, not wanting to sit next to a girl, but with absolutely no basis in Halacha, and there's a very good chance that this could make a Chillul Hashem, if one already wasn't made, you believe that you should do something.
"Should i go over and calm him down?" You ask your wife.
The next part has 2 endings:
1: Your wife shrugs her shoulders. "I don't know why you should get involved. Its his problem not yours. Also, you should mind your own business."
2: Your wife thinks for a second. "Yeah, i guess so. I mean, if you can can prevent another story going out in a nice way, why not?"
You go over to the fellow.
"You know, it's not really Assur." You patiently explain. "No Posek holds that there's an issue here. And definitely if its only until takeoff."
He looks at you with fire in his eyes. "I don't know why your getting involved! Mind your own business!"
Who is right? Assuming that the Frum passenger is wrong for doing what he did:
Should our hero involve himself in what was going on?
Was our Frum passenger correct when he told our hero to mind his own business?