Egyptair flight from Cairo to Berlin... flying business class... six people in business class area able to hold 50... one toilet. The light in the toilet did not work - that's bad! I politely informed the steward and she said 'we know' and shrugged her shoulders. During this four hour flight all passengers and staff used this toilet. Other passengers included a large disabled man who was escorted by his son and clearly had some form of dementia and elderly Egyptian woman in a full length abaya. I am 6'5" and weigh 255 lbs - so not all well-suited in the lavatory for any of us! Additionally, the 'toilet in use' sign jammed 'on' and I spent 42 minutes getting angry, waiting for the toilet to become available when it was free all along. I complained to the purser and he said 'we know'... I pointed out that a mere 'sorry' would have been more appropriate and he insisted that both he and his steward had apologised already - that's called being defensive and is actually lying! I sarcastically said 'I'm listening' and he got the point and said 'sorry'. Twenty minutes alter he came to my seat and retorted that the broken lights are not his fault - I had to stop him and remind him that it was the absence of any kind of apology that I had actually complained about. He said, 'nobody in my whole country would say this' - meaning saying 'sorry' when asked. I told him that he represents Egyptair, not the Egyptian people and that words like 'sorry' and 'entschuldigung' go a along way in any culture! I added that he did not deserve his four stripes and asked him to leave me alone. Additionally, the vegetarian meals were fine out of Berlin and Bangkok, but both legs of our journey out of Cairo, the meals were shocking! My impression is that the food was actually okay - it was the over heating that destroyed them! After all, aren't all of my complaints down to inadequate training!