A few years ago when HAL was still using the beautiful plates with the HAL logo, my MDR waiter would place the plate in front of me with the logo at the 3:00, 5:00, etc. positions instead of straight up at 12:00. I finally mentioned it to the Maitre d', and he was also "horrified".
Problem solved, never happened again.
Another example: serving hot tea without a small pot of hot water, so the tea bag steeps in the pot, not in the cup. It happened once (ass't waiter), and after I mentioned it to our table waiter, it was corrected.
Occasionally there's the impression that some waiters think we don't notice if the service is correct or not, or that we won't speak up if it's amiss.
HAL has a reputation for excellent service; if we let it slide, it will slowly erode away.