Originally Posted by
christep
Cabin baggage rules are clear: 22x14x10. Just because they are ignored in other places it doesn't follow that they will be ignored in HK. There's no point ever debating with those bag checkers - if they call you, just say OK and go back to check-in. If you know you're oversize then best to ask for the tag when you check in anyway.
I believe that the airline has to pay for over size bags through security.
I agree with everything except the last line. Not saying it is wrong just dont know how they would account for it as the security folks just notice that I have a tag and never make any notations etc.