Yes, I expected the poor manner of passengers, so I wasn’t surprised, but I was pissed off.
Oh yeah, there’s one thing that surprised me. Before and during the meal, I had red wine (of course, I made the best use of my privilege of flying an international flight!). Toward the end of the meal, cabin attendants pushed through the drink cart. I asked the third one, and the same attendant who served me the first two paper cups of wine told me, “No, you’ve already had two!” Whaaaaaaaaaaaat?! Air China doesn’t serve the third wine?!
I asked another wine during the second meal, of course, this time, to a different cabin attendant. Luckily, I got it, yay.