Mine was on a Philippine Airlines flight from Australia to Manila. Direct flight. I and my wife were Premier Elite Frequent fliers. We would alternate from Flying Business class to Economy choosing Economy when the flights were full because we would be upgraded to Business and using points for business when we accumulated them.

For this flight I had booked Business off my points and my wife was economy. As always when I have the business and she is economy, I give her the business seat and go to Economy.

This flight was the same, and her Seat was 2D.

During the flight I needed to come to see my wife about the business. I had some developments to discuss. While standing next to her seat the male Flight Attendant came to me and said “Go back to your seat. You are not allowed up here. Leave now” in an aggressive and demanding voice. (I had already asked the female flight attendant if I could see my wife for a couple of minutes and was given the ok.

I left and sat in the seat in Economy, thought about it a little, then went to the front of the plane and asked to see the senior attendant. When Asked why, I told them I was going to complain about the attendant and wanted to see him as well.

I then went to my wife and asked for the boarding pass. She gave it to me and I went to the section near the galley and waited. He came along in about 5 minutes. Then I asked him some questions.
First I showed him my Premier Elite membership, Then I asked him what seat my wife was in. He responded 2D. I then showed him the boarding pass and said what seat is on the boarding pass. again he replied 2D.
Then I asked him who’s name is on the boarding Pass?
He looked and hesitated.
I said “I want you to read it out loud”
then he read out my name;
I then asked him why he sent me out of Business class when my name is on the boarding pass?

Dead Silence.

At this point I told him I was going to write a complaint to Philippine Airlines about him and his attitude and disrespect to passengers.

Then I gave my wife the boarding pass and went to the economy seat.

The head steward came to see me and when I explained it to her she apologised. We had seen her on many flights and she knew we travelled often.

Later she came back to see if I had finished my complaint and I had, BUT, I said to her, I want him to think this will be submitted so he learns respect for others. I might and I might not.
However, can I request just one thing.

She said yes of course

before landing can I transfer to the empty seat next to my wife for landing so we can exit together.
She agreed.

I did not submit the complaint because it would have reflected on the supervisor as well and she was so nice but I am sure the male flight attendant got the message well and clear.