Surprised not to hear mention of Olympic on this thread!
Two class config A300, ATH-LHR. Business and Economy, me Business pax. Find my seat, remove jacket and walk towards forward wardrobe, "sorry, no, they are all full", as indeed they were, with crew suitbags bearing the Olympic logo and crew tags, "Put it in the overhead". I noticed as I returned to my seat that the areas around doors L1 and R1 were completely blocked by cabin crew baggage, all carrying crew labels!
A totally indifferent, grudging cabin service whilst most of their time the two cabin crew assigned to the business cabin stood around, smoking and talking to a pax who they obviously knew and who was holding court from his seat with another pax and other crew members who came forward from time to time.
An unwritten rule is that crew of one airline don't 'dob' in crew from another, but I was sorely tempted!