the two that stick in mind for me was being asked at GRU by the passenger behind me if I really was traveling First or trying the experience. I was dressed in Jeans, trainers and casual shirt - he in full 3-piece suit with cravat and spotted handkerchief, LV luggage etc. I remarked that I always lived in hope, ignoring his next comments while waiting to be served. I was in WT+ as it happened but met him again in the lounge, politely smiling as I passed.

The other was (and it is rare to see it) when a fast track queue was in operation our gate in T5. Spotting it, I dragged Mrs Compcomm to it and was immediately served, much to the "who do they think they are" from one of the other passengers.