When I flew down to Capetown in December, I had a really good experience and actually mentioned that I hope my return flight is with CemAir too (it was), but after the experience I had today, I'm so disappointed in the service on this flight. It was the 06:10 flight nr 5Z0900. Not only did the flight attendant threaten me with arrest as I boarded the plane over a rule I was not aware of, nor have I ever heard it, but before we started landing, she woke me up by repeatedly hitting me in my arm, snapping that I have to put up the tray. I continuously tried to be kind, respectful and not react negatively when she was addressing me, but it didn't seem to change her confrontational attitude. I work in service as well and I would NEVER treat a client the way that I was treated today, nor would I EVER lay a hand on one. This experience was probably one of the worst I've had and started my day in the most terrible way. I expect better service, especially taking into consideration the prices that we pay for flights in this season.