Originally Posted by
BingBongBoy
About 3 months ago, an irate passenger boarded in Club Europe, telling us he was very angry at having had his seat moved at the last minute, when he was called away in the lounge to have his boarding pass re-issued...
"I
always have 12A" he demanded...
So, I said, "Fine" not a problem... I will take you to 12A...
On arrival, when he noticed the chewing gum all over the seat and seat belt... I asked him if he would still like to sit in 12A... strangely enough, it was a no...
Nothing to do with the OP situation at all... but I am feeling in a sharing mood this evening...

The issue here (as with a lot of BA's problems) is communication.
"I'm sorry Sir, we needed to move you to another seat as your seat is covered in gum" when the new BC was presented would have handled the situation without anyone restorting to DYKWIA or needing to prove the point on boarding.
Sadly, BA still don't seem to get customer relations.