Heathrow in London gets my vote for the worst baggage handlers. I have had two guitar cases badly damaged. Fortunately the guitar inside made it through, but I cannot even imagine how they managed to inflict such damage on a case considering all they do is manhandle it on to trolleys and into holds! It must be an art they pick up from previous past masters when they start. We have also had more luggage go missing through Heathrow, including instruments, including once when we were flying business class as guests of the general manager of British Airways Middle East. Mind you, that was much more interesting because on this occasion, we called the shots.