Late 80s on UA ORD to FRA in Business. I think it was the last row as there was one seat offset from the rest and had a large tray table next to it instead of another seat. I think it was next to a galley. Before take-off a FA was walking down the aisle with a bottle of Vueve Cliquot. I commented that it was my brand. She said 'Here' and handed it to me. As we backed out she took it back and put it on ice. I am sure I drank the whole thing over the Atlantic.
Another time going FRA to ORD I was in Business full fare. Checked in and was waiting in the area. Got called back to the desk. Agent told me I was being upgraded to First. I asked if I should thank her or the computer. She said 'Me'. I can only assume Business was full and they needed a seat and since I was Full Fare I got bumped up.
Ah, the good old days.