Hi, any aircraft tech gurus out there that can explain carry on baggage weights? Recently travelled on a Thai Lion local flight, checked in large baggage at check in point, at the gate they had two trainees weighing carry on luggage after showing showing our boarding passes. We were about 2 Kilos over weight with our carry on suitcase, we were told to remove the excess and place it in another bag, which we had inside one of the suitcases, we then were allowed to board the plane, I then proceeded to our seats and placed our luggage including the 2 kilos of excess luggage in the overhead locker. Question: What did this achieve exactly??