Roughly 30 years ago, I was part of a team flying from Seattle to New Zealand to address issues regarding a recent 767 in-flight shutdown (due to the geography of NZ, nearly all their 767 flights where ETOPS - with a relatively small fleet, even a single shutdown could foul up their shutdown rate and endanger their ETOPS rating).
Anyway, the plan was to fly United, Seattle-LAX, then non-stop to New Zealand. Standard Boeing policy for long international flights was to travel business class. When we arrived at the Seattle airport, our United flight to LAX was delayed enough that we wouldn't make our connection, so they moved us to an Alaska flight where two of us ended up in First Class. We barely made the Alaska flight before the door closed - as we sat down in first, the FA came up - she was concerned that since we were a last-minute transfer, they didn't have meals for us, but we could have one of the brown-bag lunches from coach (this being back when they served food in domestic coach)(fortunately she confirmed they had no shortage of 'adult beverages'
).
After they served the First Class meal (some sort of pasta dish), she brought us our brown bag lunch with our drinks - it was a grilled chicken sandwich and a bag of potato chips (crisps). As we eating our rather tasty chicken sandwiches, the lady across the aisle - who was obviously less than pleased with her pasta - asked us how we got the sandwiches, had we ordered special meals? We explained that those were coach meals, and why we had them.
She promptly flagged down the flight attendant - who took away her pasta and gave her one of the coach meals...