[jimworcs]

One of the things many airlines get wrong (in fact many companies) is a total disregard for the needs of the customer. Food poisoning is a complicated business and where one person becomes sick is often impossible to trace the source. In this case, you had a special meal, which would explain why no-one else got sick.

Had they replied, we are sorry you were ill, we have passed on your feedback to our suppliers, and our cabin managment team, so that we hope the next time you fly you will have a better experience, I am sure you would have felt a bit better. However, they are probably terrified of litigation, and so avoid at all costs any admission of liability. This is often because their insurance requires it.

On the other hand, your threat at the end to be obnoxious to all airline staff because of one negative experience is childish. If you wish to punish Cathay, switch airlines, there is plenty of choice on that route. Being obnoxious to individuals who have nothing whatsoever to do with the event is pointless and lacking in class.