The entire flight was very chaotic. The majority of the passengers were from mainland China and they were all constantly getting up and switching seats, standing up and moving around constantly and talking extremely loud. There were constant fights occurring with people being mad that the passengers in front of them reclined their seats, Strangely the flight attendants didn't say or do anything about anything that was happening. It just looks like they gave up. By the time we landed, it looked like a garbage explosion went off. There was trash everywhere. I was even walking over all kinds of snack wrappers in the aisle on the way off he plane. The bathroom was also a nightmare. The trash can was overflowing, the floors were soaking wet, the sink had sitting dirty water that wasn't drained, and the counters had used baby diapers and yellow stains which look like urine. What happen to Cathay?!